why do your nose and your ears never stop growing?

Question: why do your nose and your ears never stop growing?
- Keywords:
  ear,
  growth,
  human,
  nose
Asked by wiseman13 to Ed, Hayley, Jason, Nathan, Sophie on 18 Mar 2013.
- Nathan Green answered on 18 Mar 2013:
  
  Cartilage – that’s the plastic-like stuff in ears and noses – cartilage continues to grow until the day you die. Not only does cartilage grow, but the earlobes elongate from gravity. And that makes ears look even larger. So think twice before wearing heavy ear rings!

Question: why do your nose and your ears never stop growing?