On average, persons have nearly about 1,00,000 to 1,50,000 hair on their heads. One of the interesting facts about hair is that the average number of hair varies from person to person. And it mainly depends on the hair color of that person.
For example, a person with brown hair has an average of 1,10,000 hair on their head and a person with black hair have an average of 1,00,000 hair on their head.
What is Hair Density?
The number of hairs a person has per square inch is referred to as hair density. A person on an average has 800 to 1250 hair per square inch.
Other Interesting Facts About Hair
- It protects us from the environment, including UV radiation, dust, and debris
- It regulates our body temperature since our lower density of hair compared to other animals promotes evaporation of sweat, which can help us keep cool
- On average, your hair grows about 6 inches in a year trusted Source. That’s about 1/2 inch per month.
- Male hair grows faster than female hair.
- You may lose between 50 to 100 hairs each day. And even you may shed even more.
- Hair color is determined by genetics. Black or brown hair is most common. About 90 percent of people in the world have these two variations of hair colors.
- As you age, your hair is more likely to turn to gray or even white.
- Hair is actually stronger than you think. For example, one hair alone can withstand a strain almost 1/4 pound.
- Water can affect some properties of your hair. For instance, your hair can weigh 12 to 18 percent more when it’s wet. Wet hair can stretch 30 % longer without damage.
- Your entire body including your head has a total of about 5 million hair follicles.
- There are very few parts of your body that don’t have any hair. These include the palms of your hands, soles of your feet, and the red part of your lips.
- A person who has rounded hair follicles has straight hair and the one who has oval hair follicles get curly hair.