The lifespan of the human hair is approximately 3 to 7 years. Hair that sheds on a daily basis is generally replaced the same day. As a result, you keep around 80% of your hair on your head all the time. Here are a few more useful facts about hair, hair growth and hair loss.
The average human head has around 100,000 – 120,000 hair follicles. Blondes may have more fun. They also have more hair at around 145,000 follicles. Whilst redheads have the least with around 86,000 follicles.
We shed hair every day of our lives. That does not mean the follicle has stopped growing hairs. On an average day, it is common to shed around 60-100 hairs.
Hair fact that hair loss can be attributed to many causes. For example, genetic, illness, stress, diet, chemical damage, hormone in-balance and pregnancy.
Hair loss does not become obvious until around 40% of your hair density.
The hair shaft is extremely strong and robust. Short of actually burning the hair has a long life span. Even out of the scalp it is very resilient to many factors. Including climate, corrosive chemicals, water.
By the age of 35 years, 40% of men are suffering from hair loss. By the age of 80 years 70% of men will be suffering from hair loss.
In America alone, it is thought men spend over 3.5 billion dollars a year trying to treat hair loss.