Is the saying “no pain, no gain” actually true?

Trainers have said for years that to get the best results, gym-goers have to train “until failure,” meaning until you can’t physically can’t do anymore.

Now, recent studies suggest that may be not the case for every gym-goer.

One trainer said those who work out regularly would benefit from an intense session, but in extremely rare instances, overdoing it can be harmful, leading to a potentially fatal condition called rhabdomyolysis, where damaged muscles begin to break down, possibly causing kidney damage.