WATER: THE ATHLETES MOST IMPORTANT NUTRIENT
Forget about every other question you have about nutrition until you’ve figured out how to stay hydrated. Being smart about water intake can separate good performance from great performance.
You are mostly water. In fact, if you took the water out of a 180-pound lean body, there would be about 55-pounds left.
Because your muscles, your brain, your blood, and sweat are mostly water, your body doesnʼt work like it should when it doesnʼt have enough water. You donʼt think as clearly, you lose endurance and your heart works harder.
When you’re severely dehydrated, sweating stops and your body overheats.
The result: fatigue, weakness, dizziness, and collapse, or worse. In fact every year, deaths in young healthy athletes are linked to severe dehydration.
Sweat It Out
Sometimes you donʼt even see sweat i.e. when you swim. But you sweat whenever your body heats up from working out.
Sweat is your body’s cooling system. Evaporation of sweat from your skin cools you down.
When you sweat you lose water from your body and that water must be replaced. Replacing the water takes a plan.
Don’t Rely on Thirst
You might be thinking, “What’s the big deal? Won’t drinking when Iʼm thirsty guarantee that I’m hydrated?”
Surprisingly, no. During exercise, for reasons not totally understood, humans don’t drink enough to prevent dehydration.
You need to drink before you are thirsty and keep drinking after you no longer feel thirsty.