Common Sense Health: Go Natural to Debut With Your New Hair Color | Art and life

Common Sense Health: Go Natural to Debut With Your New Hair Color |  Art and life

The practice of dying hair goes back to ancient Egypt, Greece, and Rome, when terrible concoctions were used to alter hair color — both for beauty and to show rank on the battlefield. In years past, animal studies questioned the safety of hair dyes. But research on humans produced inconsistent findings. More recently, studies are yielding findings that should be enough to make people pause. Researchers for a study published in the International Journal of Cancer analyzed data from the “Sister Study”. This ongoing study involves more than 50,000 women between the ages of 35 and 74 who all have a sister with breast cancer. Having a sister with breast cancer placed them at higher risk for developing breast cancer themselves.  But researchers used the cohort to study the cancer risk of hair dye. Although all participants share the same family history, only some of them used hair dye and straighteners, allowing for interesting comparisons.

What did epidemiologist Dr. Alexandra White find? She is an investigator with the National Institute of Environmental Health Sciences who studies risk factors for breast cancer. Today, hair products are not all the same, and they can contain any of over 5,000 chemicals, some of which are known to cause cancer in lab animals being fed large amount of these dyes over time. White notes that “For chemical hair straighteners, one of the big concerns is formaldehyde, which is a known carcinogen.” Products that do not overtly contain formaldehyde may yet release this hazardous substance when the product is heated.

The hair treatments took a toll, and when Harlow’s hair began to fall out, she turned to a wig. Soon, she was dead of kidney failure. The global market for hair dyes was $29B in 2019 and is expected to grow to $40B by 2025. White’s research will not slow this growth — vanity too readily trumps prudence.

What happened to Harlow? Apparently, Harlow insisted she was a natural blonde. But one Hollywood stylist, Alfred Pagano, knew otherwise. He reported that to make her platinum blonde, peroxide, ammonia, Clorox and Lux flakes were used. We will never know whether his account is accurate, but Clorox mixed with ammonia produces the noxious gas hydrochloric acid — not a healthy mixture. She found that White women who frequently used permanent hair dyes had a 7 percent higher risk of breast cancer, while Black women had a 45 percent higher risk. For women who frequently used chemical straighteners, the risk was 30 percent, with no race difference.

Natural, vegetable-based hair dyes are available. So instead of going for permanent colour, what’s wrong with taking a less drastic approach? Temporary and fading colors need not be a drawback. Set the tone with a positive attitude for going natural. And natural hair — meaning whatever Mother Nature gave you — is beautiful. Should you be concerned? On current evidence, the risk is low, compared to other known carcinogens such as tobacco and radiation. If you use hair dye, the risk is, in all probability, small. But remember — formaldehyde is used to embalm people for burial!

Source Dr. W. Gifford-Jones is a graduate of the University of Toronto and the Harvard Medical School. For more than 40 years, he specialized in gynecology, devoting his practice to the formative issues of women’s health.

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