"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Let’s be real—you don’t need a pre-workout supplement to have a great lift or make progress in the gym.

Whether it is the soaring summer temperatures or a drink after a long workout, people understand that electrolyte beverages help with hydration. Gatorade just revealed a new item. Instead of another ...

The role of insulin as a boost to the immune system to improve its ability to fight infection has been detailed for the first time. The role of insulin as a boost to the immune system to improve its ...

When we think about playing around with oxygen levels during training, we usually think about altitude training -- forcing the body to adapt to using less oxygen, so that it becomes more efficient ...