[Crash Helmet]

I've been getting headaches after intense exercises under the sun especially after playing football(soccer).Usually the headaches come about half an hour after I stop playing.It takes about 30 minutes of play for me to get headaches.However,I can play at a high level of intensity indoors for about 2 hours with a short break and not experience anything after that.Usually the aches are in the back of the head and around the temples.The headaches last for a day and they severely restrict my ability to concentrate on work.My doctor told me that it is due to dehydration but I drink lots of water before,during and after play and don't experience any symptoms of dehydration such as dizziness or nausea.What could be causing these headaches and how can I prevent them?Recently,I have also experienced minor and short headaches during school time.Usually at the end of a long day.

[bobdcow]

could be the heat from the sun, as in on your way to getting sunstroke, have you tried cooling off after a half our outside like take a drink pour water on your body and dry it off??

[lanzd]

high temperature outside, the higher pressure your blood flow that makes you feel thay way!

[Crash D]

Water may not neccicarily cure dehydration. It just replaces fluids, but products like Powerade and Gatorade replace electrolytes, sodium, etc... It's a far better cure for a possible case of dehydration than simply drinking water.

[Dawacky L]

Sounds like your dehydrated. Always take water with you when you exercise and try bringing water to school and drink it throughout the day. It could also be squinting into the sun too that could cause headaches.

[Capt_John_97]

I agree withyour doctor that it might be dehydration. it takes 72 hours to properly hydrate. When exercising that intensely you might consider drinking something like Gatorade or any of the Electrolyte replacement drinks out there. When you sweat that much you are losing more than just water you need to replace the salts and minerals too. The heat acts to make your body work that much harder to cool you offf. the body cools you off by dilating the veins. This allows more blood flow and lets more of the heat escape.The description of the headache makes me wonder if you are prone to migraines. Do you drink much caffeine? If so you might want to cut back which if you have been drinking it for a while...will give you a headache as you go through withdrawls....about 10 days