So long, and angst for all the fish

If you are a moody, angst-ridden teenager, take heart, and tell your parents to get off your back. You mind is developing, and your mood swings and emo feelings are part of that process. Own it. Then as soon as you can, get over it, you big, fat baby.

One heart and lung sandwich, hold the breath

A girl’s left lung is smaller than her right lung to make room for her heart. The lung thing goes the same for boys, but apparently it’s for no reason whatsoever.