Fatigue is one of the early signs of dehydration where a drop as little as 2% is enough to start impairing your concentration levels. How can you use water to improve your energy levels?
Depending on the intensity level of your exercise, you need to hydrate accordingly to replace lost fluids. Don’t wait until the end, keep reasonably topped up during your session. Even a brisk walk in the winter can cause you to dehydrate.
