Approximately one million teenage girls give birth in the United States each year, according to KidsHealth.org. In addition to the physical risks and financial difficulties, teenage moms experience significant social changes as well.

Forgetfulness can be a problem for teenagers. While forgetting some things can be completely normal, there are some conditions that can cause it to happen more often, such as depression, dyslexia, attentional disorders, hypothyroidism, sleep deprivation and substance abuse.