Feb 27, - Hair loss isn't fun for any age, but hair loss in teens is especially traumatic. Luckily 3. Trichotillomania. In this psychological disorder, sufferers. Jan 25, - Why are teenagers such moody, lazy, selfish nightmares? what is going on inside their child's head, parents will be a bit more patient and might them to go to sleep and wake up around three to four hours later than adults.