This article focused on Non-Hodgkins Lymphoma in relation to hair dye, primarily the use of permanent dyes, as these contain harsher chemicals. The time the dye was used is another factor this study focused on as most hair dye formulas changed around 1980 when known carcinogens were removed. 4,461 women with NHL and 5,799 women without NHL were interviewed on their use of hair dye. Women who began using the dyes before 1980 had a lightly increased risk of developing NHL (around thirty percent); whereas women who never used dyes and women who began using hair dye after 1980 saw no significant difference. Women using darker dyes used after 1980 showed a very slight increase in follicular lymphoma. Acute leukemia has been seen in women who frequently use hair dye for personal use.
http://www.cancer.gov/cancertopics/factsheet/Risk/hair-dyes
http://www.cancer.gov/cancertopics/factsheet/Risk/hair-dyes
I’ve never thought much before about the use of hair dye, and now it seems to be a mildly dangerous thing to do. I honestly always took it to be similar as dying clothes or food, that there was no real danger involved at all. It however seems a bit wrong. Anyways, it is good to see that since the 1980s more control has been placed on the hair dyes to prevent cancer and the likes, and hopefully that will continue so that horrible things do not keep on happening to people. It is also nice to see some rather clear statistical data (which part of my study has been lacking).
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I stumbled upon this article via Facebook friend and although I only skimmed through it, I figured this seems to be a bit related to your topic and that you could find it useful by chance.
This is an interesting topic for sure. I was surprised to see the levels of leukemia in women who habitually dye their hair. The study seems to show that the chemicals that are the worst maybe have been removed or changed since 1980? Is it also possible that maybe other factors changed in 1980 other than the carcinogens being removed from the dye? Maybe air quality changed or water purity increased. I feel like the levels of leukemia as a whole in society might be interesting to look into to see if the it dropped across the board.
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