Newsweek—February 16, 2008
Baby, itís cold outside. But donít let that stop you from exercising outdoors.
Bundle up. Dress in layers and choose your materials carefully. Make sure your outer layer is made from materials that repel wind and precipitation, like microfiber or Gore-Tex. Donít wear cotton next to your skin, as it traps moisture and causes your body to lose heat faster. Opt instead for moisturewicking fabrics, which keep you drier.
Decrease the intensity. When your muscles are cool, they are weaker, decreasing your power and speed. ďYou just canít do in the real cold what you can when itís warm,Ē says Marx. ďIf you normally run five miles in 40 minutes, donít plan on it.Ē
Alter your routine. Have a longer warm-up to better heat your body. Exercise in the afternoon, when temperatures are at their peak. Then get warm at home and be glad you didnít use the cold as an excuse to hibernate.