Is sweating a sign of a good workout?

Have you ever been in a spinning class with everyone following the same routine, yet some people are drenched while others have barely broken a sweat? Does this mean the sweaty ones are working harder than the others? Not necessarily.

David Jenkin, (PhD in exercise physiology and senior lecturer in human movement studies at University of Queensland) says that there are numerous factors which can influence how much one sweats during exercise, such as outside temperature and humidity.

“The simplest way to tell if you're doing moderate intensity exercise is to do the 'talk test' – if you're exercising but are still able to converse comfortably then this is considered moderate intensity exercise. And you need to do this for at least 30 minutes every day to keep yourself healthy.”