Headaches happen for myriad reasons: dehydration, eyestrain, drinking a wee bit much the previous night, and exercising. Yes, exercise too, and they’re just as annoying as any other headache. Here’s the difference between exercise headaches and regular head pains, and how you can best treat or avoid them.
Exercise headaches are actually pretty common, and they’re especially sucky since you don’t even have to do anything particularly rough to get them
From our very good friends over at lifehacker.com