As it turns out, Mother Nature is to blame for the night owl tendency in our teens. During adolescence, the teenage brain manufactures melatonin later at night.

According to the American Journal of Infection Control, more than three million school days in the U.S. are missed every year due to acute conjunctivitis.

According to MedicineNet.com, children and adolescents consume 70 percent more caffeine than their counterparts 30 years ago.