making it the first major school district to do so. The rule, which will take effect in the second semester of this school year, requires all students to have had their first shots by Nov. 21.
—Does coffee really stunt kids' growth? —How does caffeine affect sleep? Excess caffeine can also trigger headaches. Headache is one of the many side effects ofcaffeine overdose, and for some migraine patients, caffeine can actually trigger an attack. However, while there's rigorous evidence ...