Add Yahoo as a preferred source to see more of our stories on Google. Best pre-workouts to energize your workouts. I tried a range of pre-workouts while training for a half-marathon to see which ones ...

Add Yahoo as a preferred source to see more of our stories on Google. Some say pre-workout allows them to plow through their high-intensity fitness routines, even when they’re initially feeling “meh” ...

Most pre-workout effects peak within 30-90 minutes, but caffeine can stay in your system for up to 10 hours. Taking pre-workout later in the day may interfere with sleep, especially for people ...

The fitness industry continues to see a rise in the popularity of pre-workout supplements, with athletes and fitness enthusiasts increasingly turning to these products in hopes of enhancing their ...

All products featured on GQ are independently selected by GQ editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. Much like protein powder, ...

Leigh Weddle, PharmD, is a licensed pharmacist with over 10 years of experience in retail and clinical settings. Pre-workout supplements combine various amino acids and stimulants to help boost energy ...