I always get a headache afer I've been out in the sun the whole day. Why does this happen? I drink plenty of water everyday!

Sunburn. You get sun burned. Wear sunscreen , use wide brim hat , long sleeve shirt (helps keep your body humid. Without shirt , or clothing you get dehydrated faster and get headache. ) wear bright color clothes. There is a reason people in the sahara where those kind of clothing (thank good we have a/c).
Sunburn. You get sun burned. Wear sunscreen , use wide brim hat , long sleeve shirt (helps keep your body humid. Without shirt , or clothing you get dehydrated faster and get headache. ) wear bright color clothes. There is a reason people in the sahara where those kind of clothing (thank good we have a/c).