Athletes generally have a system in place. Typically they hydrate, consume the right food at the right time for them and using movement to create energy to compete. Some use caffeine, B12, energy drinks, coffee, espresso and other supplements.

Make sure your breath work is good. Keeping hydrated is super important. You don't want spike your blood sugar or over eat which cause you to release insulin which will make you "crash".

Life and Energy are synonymous. Think about your phone, when it runs out of charge, it doesn't work. Are entire biological system requires energy to work.