Cartilage between bones acts as a cushion and provide a smoother surface for joints to rub against. In oth â¦ er places it acts as a shaping structure. The tip of the nose and ears are composed almost entirely out of cartilage.
Story at-a-glance 1  -. Eating your boogers may help introduce pathogens from your environment to your immune system, helping it to learn and build defenses, according to a new theory in support of the hygiene hypothesis.
What to do: Sleep on your side when youâre congested, or try Breathe Right nasal strips. Losing pounds if youâre significantly overweight can also help (less weight equals less tissue to vibrate). And lay off the booze before bedtime, too.