A new study conducted in 20 countries reveals that one in 10 people over 60 years of age is "naturally blessed" and do not have a single strand of grey hair.
As a part of the study, researchers at cosmetics giant L'Oreal analyzed the natural hair color of more than 4,000 men and women of different ages and ethnic backgrounds from more than 20 countries, including Britain, the Daily Express reported.
The study aimed at finding out the global scenario about the age when people go grey.
The study concluded that among 45 to 65-year-olds, 74 percent had some grey hair, covering an average of 27 percent of their head.
The ratio of people with grey hair increased with age.
In those aged 56 to 60, 86 percent had some grey hair, with almost a third of their head having been covered.
But not everyone in their 60s had grey hair.
Researchers observed that 91 percent of 61 to 65-year-olds have, on average, 40 percent of their hair going grey.
But the remaining participants are apparently defying the greying process, the daily said.
The study found that there are more men (78 percent) with grey hair than women (71 percent).
--with inputs from IANS
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