Hi All, Please be careful this summer, I had heat exhaustion, and did not even know it, until I got hurt falling. I was well hydrated, in & out of air conditioning, and shade and felt fine. I tripped 2 times, but did not fall, just thinking I was clumsy. The 3rd time, I fell, but was not hurt bad. The 4th time I tripped(hours later), I fell hard and pulled the muscle in my leg and almost passed out. We had water with potassium in it, as well as an ice pack, and advill with us. My pulled muscle kept cramping, so I knew My potassium levels were down. I still can not drive 2 days later, and feel like a truck hit me. A painful lesson to learn. I will be taking a potassium supplement from now on. Kellie