So today it is 90+ degrees out and I went for a bicycle ride. Riding went well at first, but then I stopped sweating. Got light headed and heard a weird tone in my ear. I have a feeling I was very close to passing out. Lucky for me I brought enough water and my half way point was a Subway. Where I could sit in the AC and eat a BMT and drink lots of water. I guess my point is hydrate guys. And Anyone know how much liquids the body can go through in a day? BTW, Looking back I can see I was not hydrated when I left the house, but it didn't feel that way. I am tempted to force an extra liter of water down before I leave the house. Worst case scenario is I have to pee myself somewhere along the way.