Answer: There are a number of reasons why you may be sweating less under hot conditions. In the summer, our bodies work hard to sweat out excess heat. Since we don’t have much control over temperature in the summer, this is an important strategy for staying cool and dissipating body heat! Also, as hair follicles shrink with age (baldness), there may be a shedding process going on which results in less hair surface area to wick away sweat from your skin. Lastly, medications that contain strong antihistamines or decongestants can cause dryness or irritation of the eyes and nose causing them to produce more mucus than usual as well as drying up perspiration glands themselves. If these issues continue long enough they can result in temporary loss of ability to perspire at all! Please see your doctor if this is not resolving after several weeks of use.