A study published this week in the journal Nature Medicine, by researchers from Johns Hopkins University, found that women are more likely than men to use a hair extension to enhance the length of their hair.
The study found that for women who use hair extension, the average hair length increased by 8.7% from 2 inches to 3.6 inches over the course of a year.
For men, the hair lengthened by the same amount, at 8.3%.
The study looked at hair extensions in the US, as well as those in Japan and Japan, India and France.
“This is one of the first studies that looks at hair extension as a general practice in the United States,” said lead author Dr. David A. M. Miller, a professor of pediatrics and neuroscience at Johns Hopkins.
The researchers also examined how much the women who used hair extensions used them.
“It is surprising, because we know that women use hair products in more places, like at home, in the office and in social situations,” said M.G. Shamsuddin, a co-author of the study and a professor at Johns H. Hodgkin’s Hospital.
“Women are also more likely in the workplace to have an extension than men.”
Hair extensions are not for everyone The study, which included 2,500 women and 1,500 men, was conducted between July and October of this year.
Miller said that the study is an indication of trends that are already happening.
“We’re seeing that this is a fairly widespread practice that has a significant effect on people’s hair length,” he said.
“For a lot of women, there are benefits to this extension, and there are risks.”
Miller said there are many reasons why women might use hair lengths that are not necessarily intended for men.
The hair is longer because it’s thicker.
The thicker the hair, the more it can take to hold the hairs together and the more difficult it is for the hair to curl back.
The thinness of hair also contributes to the hair’s texture, and may cause it to lose its shine and curl.
A thinner hair may also cause the hair and scalp to feel greasy, as it becomes harder to maintain a straight, even line, he said, which may affect the hair growth.
The more thin the hair is, the harder it is to pull the hair into a neat ponytail.
Miller noted that the results may also be different for women.
Women may use extensions more frequently because they’re thinner and therefore easier to hold together.
But men who use them may also need to hold their hair longer, he added.
Women also may have more hair growth problems with hair extensions because they use them more often, Miller said.
Miller has been working on the study for about a year, and his findings will be published in the American Journal of Dermatology.
The University of Miami and Johns Hopkins have been researching hair extensions for a decade.
“The results in this study indicate that hair extensions are being used by women, and women are also using them more frequently,” Miller said in a statement.
The U.S. has one of only two national hair extensions programs, and the programs are not always comparable to each other, he explained.
Women tend to use the hair extensions more often because they are thinner, and therefore less likely to have to hold them together.
Men tend to prefer hair extensions that are longer.