Exercise is healthy for your body, but is your workout healthy for the environment? If you're leaving behind a bunch of plastic water bottles, worn-out spandex or polyester clothing, or dead batteries in your wake, then it's time to start thinking green. Start from the ground up by taking a look at your shoes. Most footwear companies have stopped using PVCs, which have been shown to cause a multitude of health and environmental problems, including not being biodegradable.

Also check out... How to Shop Green and Spend Less Step On It: News About Workout Shoes Workout Clothes and Shoes Workout Clothes: What Not To Wear

Look for sneakers that use rubber or other natural materials, or even better, use recycled natural materials. Look for socks and other apparel made from organic cotton, hemp, bamboo or recycled fibers - these materials are usually grown in a sustainable manner. Labels to look for are Patagonia, Gaiam and others.