According to the article the guy had water on him. So it's not enough to have the water, but we also have to drink it.

I've had terrible headaches yesterday and today and already don't drink enough (I had a kidney stone last year). I've been trying to drink more all day today before my ride home. Of course I took so much Excedrin it's hard to tell what's happening to my body. I'll drink a little more before I leave today. Luckily I have a 4.5 mile commute.

Someone helpfully posted these symptoms on my local bike forum for people not used to the heat:

Heat cramp symptoms include:

• Severe, sometimes disabling, cramps that typically begin suddenly in the hands, calves, or feet.
• Hard, tense muscles.

Heat exhaustion symptoms include:

• Fatigue
• Nausea
• Headaches
• Excessive thirst
• Muscle aches and cramps
• Weakness
• Confusion or anxiety
• Drenching sweats, often accompanied by cold, clammy skin.
• Slowed or weakened heartbeat.
• Dizziness
• Fainting
• Agitation

Heat exhaustion requires immediate attention but is not usually life-threatening.


Heat stroke symptoms include:

• Nausea and vomiting.
• Headache.
• Dizziness or vertigo.
• Fatigue.
• Hot, flushed, dry skin.
• Rapid heart rate.
• Decreased sweating.
• Shortness of breath.
• Decreased urination.
• Blood in urine or stool.
• Increased body temperature (104 to 106 degrees).
• Confusion, delirium, or loss of consciousness.
• Convulsions.

http://www.thechainlink.org/forum/to...mment%3A386131