Hair Facts

 

• A human head has an average of 100,000 hair follicles. Blondes have the most at around 140,000 hairs, brunettes have an average of 110,000 and redheads have about 90,000.
• Each hair follicle grows a new hair an average of 20 times.
• During a baby’s first year of life, all of the hairs on the head grow at the same rate.
• Hairs on an adult scalp have different growth cycles.
• It’s normal to lose between 50 and 100 hairs each day.
• Up to 90% of the hairs on your head is actively growing at any one time.
• The number of follicles capable of growing hair declines naturally over the years.
• Hair grows approximately ½ inch per month.
• Hair is made up of about 97% protein and 3% moisture.
• Chemotherapy can cause hair to fall out because the drugs target rapidly growing cells, including cancer cells, hair cells, and cells in the bowel lining.
• Excessive shampooing doesn’t cause your hair to fall out. Hair that falls out in the shower was ready to come out on its own, and has already restarted the growth cycle.
• There are three types of hairs recognized among humans: Mongoloid (straight, black hair belonging to people with Asian ancestry), Caucasoid (wavy or straight hair ranging in color from black to blonde belonging to people with European and Indian ancestry) and Negroid (black and tightly curled hair belonging to people of African descent).