As annoying as it sounds, exercising really does make life better. 

By now, you’ve probably heard that regular fitness raises endorphins, but there’s also evidence it increases dopamine, endocannabinoid and adrenaline–all chemicals associated with making us feel happy. That’s probably why the fitness industry is booming, currently estimated at over 32 billion U.S. Luckily, some of our favorite onscreen celebs are getting in on the action, and have launched their own fitness brands, offering everything from their own exercise programs to protective garments that help keep us from sweating out our edges.

Check out these celebrities that are making their mark in the fitness world.