LONG HAIR STYLES
Long hair is a hairstyle. Exactly what constitutes long hair can change from culture to culture, or even within cultures. For example, a woman with chin-length hair in some cultures may be said to have short hair, while a man with the same length of hair in some of the same cultures would be said to have long hair.
Scientists view hair as playing a large part in natural selection among many species, since thick and healthy hair or fur is frequently a sign of fertility and youth.[need quotation to verify] Humans (and horses) are however among the few species that grow their head hair very long. Human head hair serves as primary source of heat insulation and cooling (when sweat evaporates from soaked hair) as well as protection from ultra-violet radiation exposure. Long lustrous female hair is rated attractive by both men and women across cultures. An evolutionary psychology explanation for this attraction is that hair length and quality can act as a cue to youth and health, signifying a woman's reproductive potential. As hair grows slowly, long hair may reveal 2–3 years of a person's health status, nutrition, age and reproductive fitness. Malnutrition and deficiencies in minerals and vitamins due to starvation causes loss of hair or changes in hair color (dark hair turns reddish). The prevalence of trichophilia (hair partialism or fetishism) is 7% in the population, and very long hair is a common subject of devotion in this group. Among the Masaai and other cultures, short or bald hair on women is considered attractive, so the degree to which attraction to long hair in humans is cultural remains to be studied.
Ways of life often viewed as more rigid, such as soldiers and religious cultures, often have explicit rules regarding hair length. For example, Buddhist monks shave their heads as part of their order of worship.
Even outside religious structures, cultures often associate male long hair with ways of life outside of what is culturally accepted. Subservient cultures, for example, are sometimes detected by their rulers through hair length, as was the case with the Gaelic Irish under English rule and the Moors under Spanish rule in Medieval Spain.
Again, though, there are exceptions to these rules, notably among the long-haired and religiously devoted Nazarites of the Hebrew Bible (Samson being a famous example) and among the Sikhs.
East Asian cultures have traditionally seen long, unkempt hair in a woman as a sign of sexual intent or a recent sexual encounter, as usually their hair is tied up in styles such as the ponytail, plait, or any bun.