8 Surprising Sweat Triggers 07/19/2011 08:21 am ET | Updated Sep 18, 2011 227 Meg Hemphill iVillage By Meg Hemphill for iVillage 1 of 8 Hot Caffeinated Drinks Meeting for a first date over coffee? Consider an iced, decaf drink instead of that hot cappuccino. "Coffee increases perspiration in two ways," says Liz Lyster, M.D. of Holtorf Medical Group in Foster City, Calif. "First, caffeine stimulates the central nervous system, activating sweat glands so the more caffeine you have, the more you sweat. Secondly, the heat from the drink itself can make your body feel hot enough to sweat." The heat aspect is the same for any hot beverage -- like tea or apple cider -- regardless of its caffeine content. More from iVillage: Sleep Deprived No More! Cleveland Clinic Experts Answer Your Top 10 Qs 7 Foods That Lower Cholesterol Best Ways to Treat Depression Without Drugs Share this slide: More: Healthy Living Healthy Living Body FOLLOW HEALTHY LIVING facebook pinterest Suggest a correction GET THE NEWSLETTER Enter your email address to get top stories and blog posts emailed to you each day. FOLLOW HUFFPOST HuffPost Healthy Living HuffPost Healthy Living HuffingtonPost Available on the App Store Android App on Google Play Get it at Blackberry App World HUFFPOST NEWSLETTERS Enter your email address to get top stories and blog posts emailed to you each day. Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn More.