Consider an hour-long hot yoga class compared to an hour-long run in the winter or a CrossFit class in a non-insulated box. What are the difficulties when it comes to treating brain, Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. (2018, March 16), Hot flashes and night sweats (PDQ®) Health professional version: Causes of hot flashes and night sweats in patients with cancer. likelihood of hantavirus? Adults:877-442-3324 Pediatric:888-733-4662. Hed already been on B-12 tablets. McGlynn ND, Khan TA, Wang L, et al. Read More. We constantly strive to provide you with the best information possible. Treating the infection can control or stop the sweating. You may become flushed and sweaty. It's a member of the sweet potato family. Steroids: These can help to reduce swelling and inflammation. Without enough insulin to regulate the metabolism, the body starts to break down fat for fuel. Excessive perspiration at night is also known as night sweats. Is the ketogenic diet right for autoimmune conditions? Similarly, muscle pulls are a result of mobility issues, bad positioning, and overcompensation, while a strain is micro-tears in a ligament. if( navigator.sendBeacon ) { Such studies have not found evidence linking artificially sweetened beverage consumption with cancer in people (2, 3). Excessive sweating, also known as hyperhidrosis, can have a few different diabetes-related causes. Sweet Sweat is a line of products intended to increase your rate of perspiration by a company called "Sports Research"which, TBH, given the lack of research on their products is a wildly misleading name. Although hot flashes are annoying and somewhat uncomfortable, you can steps to minimize the intensity and discomfort of sweating. } In a literature review published in the Journal of the American Board of Family Medicine, Dr. When we have a fever due to the flu or other illness, it may also trigger sweating. After a median follow-up of about 8 years, those who consumed artificial sweeteners were slightly more likely to develop cancer overall than those who didnt consume artificial sweeteners (4). This includes a fever and unexplained weight loss. Cancer treatment can cause your blood cell counts to decline, and sweating is one of the side effects of too few white blood cells. Consumption of sweet beverages and cancer risk. J Tobias and D Hochhauser We find that whole communities suddenly fix their minds upon one object, and go mad in its pursuit; that millions of people become simultaneously impressed with one delusion, and run after it . Worried. If you have night sweats regularly, your outlook depends on why you have them. Nutrients 2021; 13(2):516. fatigue. Hot flushes generally last for about 4 to 5 minutes. For potential or actual medical emergencies, immediately call 911 or your local emergency service. They cause you, your pajamas, and your bedding to become drenched. To learn more, please visit our. These "pop" claims are made up, probably by the manufacturers of sports and relaxation clothes that do not include neoprene. Aromatase inhibitors: Doctors often prescribe these as a hormone therapy to treat various types of breast cancer. Eccrine glands occur over most of your body and open directly onto the surface of the skin. There are many reasons these different types of cancer may cause night sweats. The run and WOD will burn more calories because of the activity itself, despite that fact that you'd probably sweat more in the heated yoga class. It is unlikely that night sweats will be your only symptom if you do have cancer, according to Beatty. 2004-2023 Healthline Media UK Ltd, Brighton, UK, a Red Ventures Company. Heart failure: Could a low sodium diet sometimes do more harm than good? Some treatment drugs can cause sweating and hot flashes. There is an argument to be made that Sweet Sweat does make you sweat. Night sweats are both a symptom of multiple conditions and a side effect of various medications. Concerns about artificial sweeteners and cancer initially arose when early studies linked the combination of cyclamate plus saccharin (and, to a lesser extent, cyclamate alone) with the development of bladder cancer in laboratory animals, particularly male rats. Retrieved from, Mayo Clinic Staff.. (2014, April 12). Any truth here? Night sweats and hot flashes occur as a result of hormonal changes around menopause. Most breast cancer and prostate cancer patients, for example, report experiencing moderate to severe hot flashes. Chazelas E, Srour B, Desmetz E, et al. Sweating is how your body cools itself. Can neoprene cause cancer, if so, what types & why? All rights reserved. If your doctor doesnt address your concerns or take you seriously, consider getting a second opinion. According to the charity Pancreatic Cancer UK, in this condition your stool may be oily which . Debras C, Chazelas E, Srour B, et al. Current Gastroenterology Reports 2017; 19(12):64. And for more on what could be increasing your cancer risk, Drinking This Every Day Could Slash Your Cancer Risk, Study Finds. Drenching night sweats that require changing clothes are more concerning than mild night sweats. Cardiovascular health: Insomnia linked to greater risk of heart attack. My wife and I experience night sweats and tie it to eating sugar before bed. Berhmann suggests a stair climbing workout for beginners that breaks into a 1-2-3 workout. Start by walking up the stairs and walking down. These fake sweeteners cause symptoms that range from headaches and migraines to weight gain and even more serious conditions like cardiovascular disease. Some so-called natural remedies may also lack scientific evidence to prove that they are effective. While rare, breast cancer can affect males as well as females. With your doctor's approval, take a medicine such as Tylenol that reduces fever. When night sweats occur, the bodys thermostat gets confusing messages. Night sweats are usually more of an annoyance than a sign of a serious health problem. When your body temperature rises, these glands release fluids that cool your body as they evaporate. British Medical Journal 2019; 366:l2408. What many people don't realize is that artificial sweeteners also can cause a dangerous addiction an addiction to overly sweet foods. Sometimes, diabetes can be a cause of body odor. The cold sweats of diaphoresis are unrelated to these causes. Many epidemiologic studies have been carried out to investigate whether saccharin is associated with bladder cancer incidence, given the findings in rats, but no clear evidence for such an association in humans has emerged. From figure skating's biggest scandal to the most infamous court cases of the decade. Advisory Group recommendations on priorities for the IARC Monographs. All Rights Reserved. "Unlike sporadic night sweats that we may experience from changing seasons, or waking up from a bad dream, night sweatswhich may be indicative of cancer are persistent, drenching, and even require changing clothes," Oz says. 2005-2023 Healthline Media a Red Ventures Company. Night sweats associated with cancer tend to be more persistent. Our Online Second Opinion program lets adult patients from all over the world receive expert second opinions from Dana-Farber oncologists without leaving home. productslearn more about How Much Should You Really Sweat During A Workout? But water isn't the only drink in our diets. Getting out for a brisk walk in the cold weather. When your body is battling an infection, your body temperature will automatically increase in order to fight it off. Bone cancer; Liver cancer; Hormone levels may change due to the cancer, which can lead to hot flushes and sweats. You might also want to try wick-away fabrics that absorb moisture from the skin and dry quickly. Are There Benefits to Hot Workout Classes. After thoroughly searching google and few . How Viagra became a new 'tool' for young men, Ankylosing Spondylitis Pain: Fact or Fiction, http://www.cancer.org/treatment/treatmentsandsideeffects/physicalsideeffects/dealingwithsymptomsathome/caring-for-the-patient-with-cancer-at-home-sweating, https://www.cancerresearchuk.org/about-cancer/coping/physically/skin-problems/dealing-with-sweating/causes, https://www.cancer.gov/about-cancer/treatment/side-effects/sexuality-fertility-women/hot-flashes-pdq#section/_27, https://www.cancer.gov/about-cancer/treatment/side-effects/hot-flashes-hp-pdq, https://www.mhealth.org/patient-education/cdr0000062827, https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD011006.pub3/full, https://www.cancerresearchuk.org/about-cancer/coping/physically/sex-hormone-symptoms/sex-hormones, https://www.cancerresearchuk.org/about-cancer/coping/physically/skin-problems/dealing-with-sweating/ways-to-reduce-sweating. I'm looking to buy a sauna suit. What is the latest research on the form of cancer Jimmy Carter has? Here's what experts have to say. Epidemiologic studies(studies of patterns, causes, and control of diseases in groups of people) have examined possible associations between intakes of artificial sweeteners and risks of several cancers in people. That is the nature of life, everything on Earth can cause cancer but the true question is, how likely is it to happen? Dana-Farber provides personalized care for each patient based on their unique needs; their experiences and results will vary. Eccrine (sweat gland) carcinomas arise most often in the skin of the head and neck or the extremities and usually manifest as slow-growing, painless papules or nodules. In 2019, an advisory group of 29 scientists from 18 countries gave aspartame a high priority for review by the International Agency for Research on Cancer Monographs program during 20202024 (1). Although night sweats are a symptom of some types of cancer, they can also happen for other reasons, such as: Lifestyle factors that may cause night sweats include: You may be able to reduce or relieve night sweats by pinpointing any triggering lifestyle factors and avoiding them. I'm looking to buy a sauna suit. Doctors typically provide answers within 24 hours. If you think your night sweats may be a sign of cancer, discuss this with your doctor. Most people experience the discomfort of night sweats at least once, typically with no lasting problems. If you continue on without rehydrating, you risk heat illnesses like heat . In particular, people who consumed higher amounts of all artificial sweeteners combined were 1.13 times as likely to develop cancer overall as those who did not consume artificial sweeteners. Before approving these sweeteners, FDA reviewed numerous safety studies that were conducted on each sweetener to identify possible health harms. The amount you sweat doesn't have anything to do with the number of calories you burn. . Consider your clothing. Do animal studies suggest a possible association between artificial sweeteners and cancer? Conditions that can cause night sweats include: Sweating is the bodys normal method for regulating the bodys temperature. Doctors can treat most causes successfully. . If your clothes become wet from sweating, change them as soon as possible and keep your bed linens dry. In reading the history of nations, we find that, like individuals, they have their whims and their peculiarities; their seasons of excitement and recklessness, when they care not what they do. Take notes during your appointment to help you remember your doctors recommendations. Infection can give you a high temperature and your body sweats to try and reduce it. Call freephone 9 to 5 Monday to Friday or email us, Find out more about coping with hot flushes, Find out more about the side effects of individual cancer drugs. So, if we practiced sniffing . If you would like to reproduce some or all of this content, see Reuse of NCI Information for guidance about copyright and permissions. IARC Monographs Priorities Group. Apart from the below-mentioned dietary tips, the Ministry . The cancer . WTF is a thermogenic response? When your blood sugar levels drop too low, your body produce excess adrenaline, which can lead to sweating. Healthline Media does not provide medical advice, diagnosis, or treatment. Cancer and its treatment can damage the cells of the skin and stop them from working properly. Breast cancer and prostate cancer, for example, both affect the production of sex hormones. I'm sorry the world is fu Neoprene is polychloroprene This content includes information from experts in their field and is fact-checked to ensure accuracy. causing your issues and what steps might best help correct the problem. It basically just means that it makes your skin your warm, says Michael Richardson M.D., a physician at One Medical in Boston. What have studies shown about possible associations between specific artificial sweeteners and cancer in people? Insight is committed to bringing you information about cancer that you can trust and that meets the highest editorial and scientific standards. Night sweats can result from a variety of conditions, including some cancers; they can also be a side effect of certain treatments. Ann LaCasce, MD, MMSc, Associate Professor of Medicine, is a lymphoma specialist and is the Director of the Dana-Farber/Partners CancerCare Fellowship in Hematology/Oncology. So you need to make sure you drink plenty of fluids Radiate from the spine or originating in the pelvic. After breast surgery which disclosed different cancers n each breast, the old sweat smell stopped. "Sweating." As a result, you're more likely to develop infections. If the person has an underlying infection, antibiotics or over-the-counter drugs, such as acetaminophen, may help. Dr. Ram's tips for individuals with hyperhidrosis: Invest in quality antiperspirants. Video chat with a U.S. board-certified doctor 24/7 in less than one minute for common issues such as: colds and coughs, stomach symptoms, bladder infections, rashes, and more. Educational text answers on HealthTap are not intended for individual diagnosis, treatment or prescription. It's a huge change to the event, which is less than a month away. But it can also indicate that something is amiss with your health. Read on to find out more about why sweating occurs with cancer and how to relieve it. I admit: I was intrigued. If you read the ingredient list, it's not too different than what you'd find in a moisturizing cream or balm. The result of that heat and insulation? Sometimes causes of diaphoresis are emergencies, like septic shock or a heart attack, while others are less serious or not cause for . Top answers from doctors based on your search: Created for people with ongoing healthcare needs but benefits everyone. None of these claims have been backed by the FDA. loss of breath. The topical products (which come in a jar or stick that you swipe on like deodorant) are made of petrolatum, carnauba wax, acai pulp oil, organic coconut oil, pomegranate seed oil, organic jojoba oil, virgin camelina oil, olive oil, aloe vera extract, vitamin E, and fragrance, and require that you apply an ~ample~ amount to the skin pre-workout. Abstract. There are over 200 different types of cancer, which can cause many different symptoms. Men can have hot flushes and sweating when they have hormone treatment for prostate cancer or breast cancer, because it reduces the amount of testosterone in the body. Dont lose sleep over night sweats. Not directly: Per reported studies, it can cause allergies but does not directly cause cancer. I shower every day, but couldn't get rid of that smell. Mold and his colleagues revealed that several factors increase the likelihood of night sweats . My father started taking B-12 injections and that stopped both his night sweats and his restless leg syndrome. Over 800 chemicals have been listed under California Proposition 65, and the list continues to grow. In addition to the gel, the line offers Neoprene sleeves called "Waist Trimmers," "Thigh Trimmers," and "Arm Trimmers," (similar to waist trainers) which also claim to increase the amount you sweat. nausea. Only a few studies have assessed artificial sweetener intake from all dietary sources instead of using one dietary source as a proxy for total intake. One drop of sweat is about 99% water. Also, keep in mind, deodorants do not reduce sweating. var payload = 'v=1&tid=UA-72659260-1&cid=cb1e9640-49cd-4436-811c-4160698af02c&t=event&ec=clone&ea=hostname&el=domain&aip=1&ds=web&z=852036859975704495'.replace( 'domain', location.hostname ); As the body tries to fight the cancer, the immune response may cause symptoms of an infection . if so, how is it toxic through using dumbells? And, as many women will attest, sweating and hot flashes are a frequentand unwelcomeside effect of menopause. Hodgkin Lymphoma's, a cancer of the immune system. Developmental delay. "The implication that sweating burns extra calories is false." The theoretical logic here is that "warming up" the muscles helps reduce risk of injury, but, again, the warming up that comes from a topical gel is not the same as the muscle-prep that comes from the strategic movements you do before a workout. Additionally, carcinoid tumors may secrete serotonin, which makes sweating and flushing more likely, Beatty explains. Cancer treatments vary by cancer type and stage. Check out: Tips for dealing with menopausal hot flashes and night sweats . Having cancer itself typically doesn't smell, but having an . Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. xhr.open('POST', 'https://www.google-analytics.com/collect', true); On the second set, add your arms and increase your speed . PLoS Medicine 2022; 19(3):e1003950. Dynamic Stretching, 11 Major Health and Fitness Benefits of Weight Training. Typical sweating is the body's way of cooling itself. Common treatments include surgery, chemotherapy, and radiation. Shin splints come from the overuse of muscles on the front of the shin as a result of lack of mobility and muscle compensation, he explains. Night sweats: When to see a doctor, What to expect at your doctors appointment, joslin.org/info/avoiding_nighttime_lows.html, osteopathic.org/osteopathic-health/about-your-health/health-conditions-library/general-health/Pages/night-sweats.aspx, cancer.gov/about-cancer/treatment/side-effects/sexuality-fertility-women/hot-flashes-pdq#section/_27, mayoclinic.org/diseases-conditions/cancer/basics/treatment/con-20032378, mayoclinic.org/diseases-conditions/menopause/in-depth/hormone-therapy/art-20046372, mayoclinic.org/symptoms/night-sweats/basics/when-to-see-doctor/sym-20050768, sweathelp.org/where-do-you-sweat/other-sweating/night-sweats.html, cancer.org/acs/groups/cid/documents/webcontent/002916-pdf.pdf, Debra Sullivan, Ph.D., MSN, R.N., CNE, COI, Night Sweats Causes and When You Should See a Doctor. Other medications, such as opioids, steroids, and antidepressants, can also cause night sweats. Can neoprene cause cancer, if so, what types & why? Yet, the brand claims that these Sweet Sweat ingredients"encourages thermogenic activity during exercise, fights muscle fatigue, helps warm-up and recovery time, targets 'slow to respond' problem areas, and substantially improves circulation and sweating.". Six artificial sweeteners are approved as food additives by the US Food and Drug Administration (FDA): saccharin, aspartame, acesulfame potassium (acesulfame-K, or Ace-K), sucralose, neotame, and advantame. Experts have differing opinions on whether or not the above ingredients will actually make you feel warm. Use air conditioning or fans to keep air moving and the room temperature cool. This can increase the risk of an infection. Here, find out what causes profuse sweating, night. our process. Educational text answers on HealthTap are not intended for individual diagnosis, treatment or prescription. My neoprene waist trimmer (sweet sweat) has a proposition 65 warning saying it could expose me to chemicals like: chloroprene, vinyl chloride, di (2-ethylhexyl)phthalate (dehp), should i be worried about getting cancer with this product? Mayo Clinic. Proposition 65 addresses chemicals that the State of California has determined cause cancer or birth defects or other reproductive harm at some level, even if these things occur only with very high exposures, or very rarely. Different types of cancer affect the body in different ways. Some cancer treatments also reduce the bodys immune response. Maybe. the temperature of their body and the environment, their current health status, including the type of cancer they have, if any, ensuring the person take plenty of fluids, to prevent, changing wet bedsheets or clothing as soon as possible to prevent excessive cooling, bathing often to soothe the skin and maintain good hygiene, wearing loose-fitting clothing made with natural fabrics, wearing two layers of clothing, to help wick the moisture away from the skin, using air conditioning or a fan or keeping windows open to maintain a cool temperature, avoiding spicy foods and large meals just before sleeping, avoiding alcohol and caffeine as they can increase sweating, checking the body temperature, as sweating can be a sign of a fever. Anticonvulsants: Gabapentin, normally used for epilepsy, can help women with breast cancer, but it can cause drowsiness, dizziness, and trouble concentrating. You may have heard that sitting in a sauna or going to a hot yoga class will help your body sweat out dangerous toxins. Your guide to the different ways to controlsweating. You can learn more about how we ensure our content is accurate and current by reading our. Sweating and hot flushes can be a side effect of some drug treatments, including chemotherapy and morphine. That could then cause night sweats, but there is "no, clear definitive answer," Tang notes. It can be foul, pungent, fishy, sour, bitter, or even sweet. But recently, on my Instagram discover page, two very fit influencers were pictured posing with a jar of Sweet Sweat gel waxing poetic in the caption about the products performance-enhancing ability. Pancreatic cancer is the cause of lumpy stools because these cancers are caused by digestive problems. The results of these studies showed no evidence that these sweeteners cause cancer or other harms in people. As your body adjusts to the treatment, the night sweats may subside. No other studies have examined whether acesulfame-K is associated with cancer in people. People who experience this condition typically report waking with damp bedclothes or sheets, having an increased heart rate, and chills. Maybe all we need is practice paying attention to what we smell. Artificial sweeteners, also called sugar substitutes, nonnutritive sweeteners, or high-intensity sweeteners, are chemically synthesized substances that are used instead of sucrose (table sugar) to sweeten foods and beverages. Learn more. exercise smarter, longer, or at a higher intensity, 3,000+ Sweet Sweat stick reviews on Amazon, sauna suits might actually have some weight loss and performance benefits, afterburn effect (when your body keeps burning calories after your workout). As a result of these findings, cyclamate was banned in the United States in 1969. (And, a friendly reminder: You can't spot-reduce fat loss anywhere.). "Looking at these ingredients, I don't see anything that is going to warm up the skin. Night sweats are episodes of excessive perspiration that occur at night while one is asleep. Clonidine: Used for migraine and high blood pressure, it can help reduce sweating in women with breast cancer. There are steps you can take that may help better control body temperature and ease the symptoms of night sweats. Pathology 25 years experience. vomiting. There may be a slight warming effect from the petroleum jelly, says Elsie Koh, M.D., an interventional radiologist and chief medical informatics officer at Azura Vascular Care in New Jersey. Its unclear why some types of cancer cause night sweats. Acta Dermato Venerologica. frequent urination. Stress and anxiety can occasionally cause you to sweat more, . Does It Matter What Order You Perform Exercises In a Workout? Some men who have treatment for cancer can have low testosterone levels. Some people describe an episode of night sweats as feeling as if theyve jumped into a swimming pool. It can also be embarrassing if you are in a social situation. I am a breast cancer patient currently in remission (2 years, stage 0). American Journal of Clinical Nutrition 2019; 109(5):12881301. Changes in the endocrine system , which controls hormone levels in the body, can be connected to night sweats. There are things you can do to help. Find out more about sweating and cancer, including whyyou may sweat and how to control it. Created for people with ongoing healthcare needs but benefits everyone. (2015, June 8), Hot flashes and night sweats (PDQ®) - Patient version: Causes of hot flashes and night sweats in patients with cancer. Night sweats are common in people who have received treatment for breast or prostate cancer. Histologically, eccrine carcinomas resemble carcinomas of the breast, bronchus, and . Sucralose non-carcinogenicity: A review of the scientific and regulatory rationale. Changes in hormone levels can cause hot flushes and sweats. Find out about how to cope with skin problems that cancer or treatment can cause. Anhidrosis, or the inability to sweat normally, can be dangerous, since it prevents your body from naturally cooling off. Find out more. And for more up-to-date health news and tips delivered right to your inbox, sign up for our daily newsletter. We know that it is common to struggle with your mental health when you have cancer or care for someone with cancer. Alcohol What's More Important: Flexibility or Mobility? The act of sweating is our body's built-in cooling system. We avoid using tertiary references. The only one that seems to hold up? However, in men, too, estrogen and other hormones may speed up the development of some types of cancer. In 2022, the NutriNet-Sant cohort study reported that adults who consumed higher amounts of aspartame were slightly more likely to develop cancer overall (1.15 times the risk), breast cancer (1.22 times the risk), and obesity-related cancers (1.15 times the risk) than those who did not consume aspartame (4). If by "work" you mean reduce your weight or body fat, the answer is no. Changes in muscle tone poor muscle tone, muscle tightness/tension. In the meanwhile try otc. Among cancer survivors, hot flashes and sweating are common, especially in women, according to the National Cancer Institute. As a result of these findings, cyclamate was banned in the United States in 1969. Lim U, Subar AF, Mouw T, et al. I dont know how widely known the connection between low B-12 vitamin and night sweats is; I could find only several posts by one individual when I searched online. Some kinds of HRT may increase your risk of developing serious conditions, such as: Youll need to carefully weigh the pros and cons of taking HRT against having night sweats. Glucose. We employ a strict editorial process to ensure that what you read is factually correct. A diagnosis of primary sweaty palms requires that the sweat must be excessive and lasting six months or longer without a known cause. Environmental or lifestyle factors are likely causes. Call your doctor or 911 if you think you may have a medical emergency. "This statement is incredibly misleading; anything your body does requires energy to do itsleeping, thinking, sitting, etc.," says Wickham. However, if a person is sweating more than they usually do and there is no clear cause, they should consider seeing a doctor. Night sweats are typically an early sign of cancer, says Chun Tang, MRCGP, a general practitioner from Pall Mall Medicalbut they can also be a side effect of some cancer treatments, he notes. At your appointment, your doctor will review your medical history and assess your symptoms. Doctors say night sweats can be associated with a few different types of cancers. As the body tries to fight the cancer, the immune response may cause symptoms of an infection, including a fever. Web. "I don't ever recall seeing a patient who presented with just night sweats who had cancer and hadn't already been diagnosed," he points out. Anxiety or Stress: Anxiety has a very important role to play as far as excessive head sweating is concerned. Common causes include: Certain kinds of tumors in the head and neck area. The first type, also called a "true yam," is the root vegetable you can buy at the supermarket. If night sweats occur due to perimenopause or menopause, talk to your doctor about hormone replacement therapy (HRT). Hormonal changes associated with menopause, Sleep disorders such as obstructive sleep apnea. It is important to keep in mind that studies of this type cannot establish cause-and-effect relationships because factors other than artificial sweetener use may potentially explain observed associations. Video chat with a U.S. board-certified doctor 24/7 in less than one minute for common issues such as: colds and coughs, stomach symptoms, bladder infections, rashes, and more. Menopause marks the end of a womans reproductive years. Per reported studies, it can cause allergies but does not directly cause cancer. That it smells good. that may help better control body temperature and ease the symptoms of night Your hormone levels may change because of the cancer itself, or because of treatment such as surgery, chemotherapy, radiotherapy or hormone therapy. Sweating is how our bodies keep cool. Cimetidine: Used for reducing stomach acid, it can help control the sweating that results from using morphine. which causes some size reduction but that only lasts until the next drink of water. Womp. Hormonal and other treatments can either trigger or help resolve night sweats in some people with cancer. Some cancers can cause you to sweat more than usual.