How to change body composition in a healthy way

It has been proven that athletes with more muscle mass and less fat are able to run faster due to the power-to-weight ratio. Oftentimes, athletes will try to lose weight in an unhealthy way which can negatively affect performance and cause injury.
Hydrating in heat and humidity

Dehydration increases an athlete’s perceived effort and reduces the ability to continue exercising at a high level. Sweat is the body’s built-in cooling system that enables the body to make more energy.