Natalie+T+-+Wonders+of+Science

WONDER QUESTION: How does hair grow?
 * Hair starts to grow in your mom's womb.
 * When you were just 22 weeks old, over 5 million hairs were on your head.
 * Hair starts to grow as a root or a bulb.
 * Hair grows when it collects dead cells.
 * Hair grows half an inch every 28 days.
 * Hair falls out when you are stressed.[|hair video]clik on the link and push visit