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Blow-drying your hair works by changing hydrogen bonds to alter the shape. Water also changes hydrogen bonds, which is why many women – particularly those with curly hair – dread humid weather.
Think your weird aunt Lily has long hair? You should see the world’s longest documented hair, which was measured in 2004. It belonged to Xie Qiuping from China, and measured 18.5 feet long.
A single hair strand can support up to 100 grams in weight. Multiply that by the average 100,000 to 150,000 strands on each head, and your entire head of hair could support the weight equivalent of two elephants.
Research shows hair becomes drier with age. Fortunately for Nana, this can be remedied with the right hair care treatment.
In Europe, most people wash their hair three times a week, while a quarter of the population washes their hair daily. 80% of North Americans and 90% of Japanese people wash their hair twice a day.
Hair follicles contain their own muscles, nerves and blood supply. The size of a follicle determines hair’s length and thickness.
Despite what sinister shampoo companies suggest, men and women’s hair share identical structures and growth cycles.
Women lose a lot of hair after giving birth. This is called postpartum hair loss and is due to hormones trying to regulate.
Dandruff is a condition where excess skin flakes appear on the scalp. Stress worsens this condition but, fortunately, there are many anti-dandruff shampoos on the market today.
The anticipation of sex makes hair grow faster. Sex and hair have an intimate cellular relationship that is controlled by the body’s hormones. Case studies of sailors at sea have shown hair growth accelerated right before shore leave, but slowed down upon return to the ship.
