map (function, iterable, ...) Â¶ Apply function to every item of iterable and return a list of the results. If additional iterable arguments are passed, function must take that many arguments and is applied to the items from all iterables in parallel.
The grey hair ârule of thumbâ is that by the age of 50, half of the population have lost the colour in 50% of their hair. When researchers tested this rule, they found that 74% of people aged between 45 and 65 had grey hair, with an average intensity of 27%.Generally, men have more grey hair than women.he grey hair ârule of thumbâ is that by the age of 50, half of the population have lost the colour in 50% of their hair. When researchers tested this rule, they found that 74% of people aged between 45 and 65 had grey hair, with an average intensity of 27%. Generally, men have more grey hair than women.
In those years sheâs seen old hair and young hair, long hair and short hair, lots-o-hair and barely-there hair. One thing she doesnât see a lot of is grey hairâother than roots, that is. Women have been covering up their grey for hundreds of years. 2008 study done by Clairol found that 75 percent of American women dye their hair. This same survey revealed that 88 percent of women feel their hair has an effect on their confidence. Marilyn owns Leepinâ Lizards Hair Place in Portland, Oregon. She said the majority of her clients are over 40.