Hair Fact or Fiction?

Average number of hairs on the head: 100,000

Red hair: 90,000

Black hair: 110,000

Blond hair: 140,000

Maximum length of hair: 70 to 90 cm

Annual growth: 12 cm

Female hair grows more slowly than male hair (wouldn’t you just know it)

Male hair is more dense than female hair (ditto)

Lifespan of hair: 2 to 7 years

Diameter of hair: 0.1 mm

Load-carrying capacity: 100 grams (= one chocolate bar)

Humidity stretches the hair

Combing is less detrimental than brushing

Correct shampooing will not dry out the hair

Frequent washing does not increase loss of hair

Hair grows faster in warm weather

Elderly people have slower hair growth and diminished hair density

Cutting hair does not influence its growth

Spliced ends can not be repaired and need to be cut

Wet hair should not be rubbed since hair is very sensitive

source: Weird and Wonderful Hair Facts

It turns out that blondes are the hairiest of all, yielding 120,000 to 140,000 hairs/scalp! (That’s around 20,000 extra compared to other hair colors) You can take that stat to your office cleaning crew, the experts in lost hair-finding. Whatever ethnicity, your apparently full head always grows a few duds; around 10% of your hair stops growing prematurely, but sticks around just for show. They are just dead cell strands, after all!

African American People Have Slow Growing Hair

This is false healthy hair grows fast, there is no correlation between hair growth and race. African American hair needs to be taken care of in a different way compared to other hair types. One reason that the hair growth is slowed due to relaxing, heat and chemical treatments. These thing can make hair brittle and lead to breakage. Certain types of hair can break easier like curly hair for example. The apex of the curl is the weakest part of the hair and tend to break in those areas where as straight hair does not have that problem. The longer your hair gets the more pressure gets exerted on the root of the hair causing stress areas. This is why keeping you hair healthy is so important because healthy hair is strong hair. source: Myths about Black Hair Growth