Get stronger and build muscle fast with this Chris Bumstead-approved full-body routine that hits every major muscle group.

What Exactly Is Vitamin D? Despite its name, vitamin D isn't a vitamin—it's a hormone. Unlike traditional vitamins that we must obtain solely from food, our bodies can produce vitamin D naturally when ...

Fuel your lifts with the nutrient your muscles crave most. Keep glycogen topped up and unlock higher training volume, faster recovery, and bigger gains. Start eating for peak performance and push past ...

If you’re new to strength training, it’s important to know that muscle gains happen during your recovery period, not during the actual training. Therefore, getting adequate rest — ideally 48 hours — ...

We all know getting enough protein is important. Protein supports muscle growth, keeps you feeling full, aids with weight management, and supports a healthy immune system. It's even more important to ...

What's a typical rate of muscle gain? Unfortunately the short answer is "It depends," because everyone's body responds to stimulus a little differently. But in general, the average exerciser can ...

During sleep, the brain produces growth hormone to help build muscle and bone and reduce fat. UC Berkeley research in mice reveals the brain circuits that regulate growth hormone release, along with a ...

UC Berkeley researchers mapped the brain circuits that control growth hormone during sleep, uncovering a feedback system where sleep fuels hormone release, and the hormone regulates wakefulness. The ...