Climate change isn't just increasing outdoor temperatures and warming up the
oceans. It may also greatly increase your chances of getting a really bad case
of poison ivy.
As the level of carbon dioxide in the atmosphere increases, it's boosting
the growth of poison ivy plants, two recent studies show. These elevated carbon
dioxide levels are creating bigger, stronger poison ivy plants that produce
more urushiol, the oil that causes the allergic reaction and miserable poison
ivy rash. The urushiol...
"It's not always easy for the average person to know the difference," says Benjamin Barankin, MD, a dermatologist in Toronto and a member of the American Academy of Dermatology.
Excessive sweating, or hyperhidrosis, can be a warning sign of thyroid problems, diabetes or infection. Excessive sweating is also more common in people who are overweight or out of shape.
The good news is that most cases of excessive sweating are harmless. If you are worried about how much you sweat, here's information to help you decide if you should see a doctor for a medical diagnosis.
What Is Excessive Sweating?
If you just sweat more than other people when it's hot or you're exerting yourself, that's not usually a sign of trouble. Sweating is a normal reaction when your body's working harder and needs to cool itself down.
"There are natural variations in how people sweat, just as there are variations in other bodily functions," says Dee Anna Glaser, MD, vice chair of the dermatology department at St. Louis University and president of the International Hyperhidrosis Society. "Some people start sweating more easily than others."
True excessive sweating goes beyond the normal physical need to sweat. If you have hyperhidrosis, you may sweat heavily for no reason -- when it's not appropriate to the circumstances.
"Let's say that the temperature is mild, and you're not anxious, and you don't have a fever, and you're just watching a movie with your family," says Glaser. "If you're sitting there sweating profusely, that's not normal."
Barankin says that there are two basic types of excessive sweating: localized hyperhidrosis and generalized hyperhidrosis.