Workouts that wow: The world's most amazing hotel gyms | cnn.com

Veteran road warriors know that the best way to beat jetlag and energy-zapping meetings is by working up a serious sweat. That schedule of constantly changing time zones, back-to-back meetings and intense pressure can wreak havoc on your mind and body. But studies show that exercising regularly can help to regulate your circadian rhythm -- also known as your internal clock -- which is affected every time you travel.