Whether you live somewhere that is always hot or are getting ready to start working out in the summer, you need to be aware of what exercising in the heat can do. Not being prepared for the higher temperatures can put you at risk of serious illness, so you need to take precautions to protect your health. If you don't have the right equipment or if the heat is more than you can handle, it is a good idea to save your workout for another day. To keep you fit and healthy this summer, here's...