Your ears and nose never stop getting bigger because gravity and aging stretch them out.

In 1993, a doctor named James Heathcote led a study for the Royal College of General Practitioners to see if ears really grow. He measured the ears of 206 patients over the age of 30. The study found that ears grow about 0.22 millimeters every year. Over 50 years, your ears could become more than 1 centimeter longer!This change isn't actually 'new' growth like when you get taller. It is not caused by the body making new cells. Instead, it happens because ears and noses are mostly made of a flexible material called cartilage. As you get older, the collagen and elastin fibers that keep your skin and cartilage firm start to break down.When these fibers get weak, they lose their 'spring' and can't fight against gravity anymore. This causes the earlobes to sag and the tip of the nose to droop downward. Sun damage can also make this happen faster by weakening the skin even more.A different study in 2008 used 3D imaging to look at faces of people between ages 20 and 80. It showed that while the bony bridge of the nose stays the same, the soft tip stretches and widens over time. Because the rest of the face often loses fat and muscle as we age, the sagging ears and nose stand out even more.