They don’t hydrate properly.
Roughly speaking you should be drinking about half your bodyweight in pounds, in total ounces of water, per day. Upper limit is about 100 oz. I recommend electrolytes – especially for athletes. This will vary based on age, activity level, climate, and a few other things … but the bottom line is, many people often mistake hunger for thirst.
Over the next few days, I’ll be posting the Top 10. Stay tuned!