9 You Sweat Too Much Are you a dude who sweats a lot even when you're not exerting yourself? There are a ton of possible causes for this, and many of them have nothing to do with laziness, unfortunately. But let's address a possible cause here, and one you can do something about: You wear cheap shirts made of synthetic materials. If your shirts contain any amount of acrylic, polyester, Spandex or Lycra -- and many cheap mall-acquired dress shirts and sweaters do -- then you're sweating more than you need to. Stick with natural fibers -- cotton, linen, cashmere. Avoid silk, obviously. You'll find that you sweat less, and your clothes will look better. You may not notice the difference, but ladies will