skin and hair...........

Skin and hair

• Shaving does not cause terminal hair to grow back thicker or coarser or darker. This belief is based on the fact that hair which has never been cut has a tapered end, whereas after cutting there is no taper. Thus, the cut hair appears to be thicker, and feels coarser due to the sharper, unworn edges. The fact that shorter hairs are "harder" (less flexible) than longer hairs also contributes to this effect.^{[194][195][196][197]}
• Hair and fingernails do not continue to grow after a person dies. Rather, the skin dries and shrinks away from the bases of hairs and nails, giving the appearance of growth.^[198]
• Hair care products cannot actually "repair" split ends and damaged hair. They can prevent damage from occurring in the first place, and they can also smooth down the cuticle in a glue-like fashion so that it appears repaired, and generally make hair appear in better condition.^{[199][200][201][202][203]}
• The redhead gene is not going extinct. In August 2007, many news organizations reported that redheads would become extinct, possibly as early as 2060, due to the gene for red hair being recessive. Although redheads may become more rare, they will not die out unless everyone who carries the gene dies or fails to reproduce.^[204] This myth has been around since at least 1865, and often resurfaces in American newspapers.^[205] (See also disappearing blonde gene.)