30 Nov The signs you might think convey a workout well done aren't always such great indicators. Take sweat: How much fluid you lose while exercising is incredibly subjective. The average person sweats between and liters in 60 minutes of working out, says Michael J. Ryan, Ph.D., an associate professor. 19 Mar For anyone who is looking to pack on some serious mass, one of their top priorities will be to determine what the best training method is. Here are 5 workout set-ups to pack on serious muscle. Learn more. 2 Jan If your aim is to lose weight, these 10 workouts are all excellent places to start. Find out how to exercise (and eat, and other things) to reach your goals.