To become a personal trainer, you must obtain certification from one of several industry organizations, like the National Academy of Sports Medicine (NASM) or the American Council on Exercise (ACE).

Although personal training has been associated in the past with young bodybuilder types, a growing number of Americans are entering personal training as a second career, industry officials say.

All that said, “it’s very easy to become a personal trainer,” said Rae Reichlin, the founder of Ladies Who Lift in Chicago. So while you could easily find a coach or trainer on social media ...

ChatGPT has already led to many changes across society. People seek help from artificial intelligence for various tasks, including exercise. But can you use it as your personal trainer? An ...