Creatine helps increase power and muscle growth, while pre-workout offers quick energy and focus. Learn how they differ and when each supplement makes sense for you.

To be completely honest, even thinking about going to the gym can be exhausting sometimes. While the post-workout endorphins and visible results can be motivation to give your workout all you've got, ...

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Most pre-workout effects peak within 30-90 minutes, but caffeine ...