Is Hair Dye Linked to Breast Cancer?

by birtanpublished on August 29, 2020

New studies out on hair dyes and breast cancer risk and a wide range of media's covered it in full force some with caution and some without let's take a step back and consider the whole picture this is healthcare triage news to the research study published December

3rd in the International Journal of cancer reports that the use of hair dyes and chemical straighteners particularly among black women is associated with a higher risk of breast cancer the researchers analyzed data from the

Sister study which tracks the health of over 50,000 women who had a sister diagnosed with breast cancer but did not have breast cancer themselves when entering the study between 2003 and 2009 the current study reports the use of

Permanent but not semi permanent or temporary hair dye is associated with a 45% increase in breast cancer risk for black women and a 7% increase in risk for white women use of chemical straighteners reportedly increased risk

Equally between black and white women even though 74% of black women report using them compared to only 3% of white women the problem is that these studies require many of the same caveat you've heard me talk about before but bear with

Me as I repeat those percentages I just mentioned represent the relative risks absolute risk give you numbers that are more meaningful but they're almost never reported these are also observational data which means nothing has been proven

To be causal the data like how many times have you dyed your hair and what kind of dye was it we're also obtained by a self-report and since memory is extremely fallible we have to accept that these are imprecise I don't mean

That they're worthless I mean we have to be measured when we interpret them it's also good to mention the data on associations like these can be wild being consistent often due to the factors I've just mentioned plenty of

Studies the report of the association's that show an increase in the risk of breast cancer and then enough reported the permanent hair dye does not increase the risk that the Susan G Komen Foundation website takes the position

That there isn't conclusive evidence of risk here of course it's important to study risk factors for breast cancer and of course it's important to understand the various chemicals and compounds in the

Products we put in and on our bodies and of course I understand that we always can't do a randomized controlled trial when it comes to potential carcinogens but we need to be more careful about lathering media attention on single

Observational studies reporting on very small signals that could very well have no real-life significance kudos to the NPR report on this study which included the view of a medical oncologist at Johns Hopkins who pointed out and I

Quote this is a very weak signal that these things might be causing cancer in the population he goes on to point that the actual risk factor of these products is quite low when compared with other known carcinogens an inch of scientific

Progress is often covered like a mile in the media misleading and often unnecessarily alarming the public agent riders episode you might enjoy this other episode on things you can do to prevent some cancers we'd also like you

To think about liking subscribing down below I'm going to patreon.com/scishow well you can help make the show bigger and better especially if you think our research associates

Related Videos

hey guys techrax here coming at you guys with another giveaway this is gonna be an iPhone 5s two of these brand new phones not the one in this video guys this i...
hey guy there's a popular game in the app store called flappy bird right now and it's supposedly really annoying believe it or not I haven't played ...
hey guys tech Rex here so right here with me I have an Apple iPhone 5s this is the gold one I also have with me some liquid nitrogen yes this is the real deal a...
hey guys techrax here right here I have the iPhone 5s with me this is the champagne or the gold color I still can't really figure out if it's champagne ...
hey guys tear cracks here so this video really exciting video I have the new Samsung Galaxy s5 for you guys this is the long-awaited cellular devices releases i...
everyone techrax here in this video I've got the latest Samsung Galaxy s5 right here as well as the Apple iPhone 5s and we're going to be doing a simple...
everyone techrax here in this video guys have a really exciting device this is the Samsung Galaxy s5 charcoal black and I'm really liking I after seeing the...
everyone techrax here here with me off the Samsung Galaxy s5 this is a perfectly fine s5 it is cracked from the drop test that I had with also one minor neck as...
hey guys tetrax here so in this video I'm going to try and burn the newly released Samsung Galaxy s5 this is the shimmering white 16 gigabyte model and if y...
everyone techrax here so I got my burn Samsung Galaxy s5 and I wanted to see whether the heartbeat sensor would still work the heart monitor on your galaxy s5 a...
hey guys Tech Rex here so I'm really excited to bring you guys a giveaway for my channel but this time I'm actually teaming up with a buddy of mine your...
hey guys techrax here so in this video I'm going to be hopefully instructing you guys how to make your very own a tech sandwich slash burger slash meal so y...
hey guys techrax here so I've got a galaxy s5 here this is the copper gold hopefully you guys can see pretty well it is sunset so it's getting a little ...
hey guys techrax here so right here with me I have a professional deep fryer in here is already some canola or corn or whatever oil I don't know vegetable o...
hey guys techrax here so just trying to make this video short and quick i'm having recently i got five hundred thousand subscribers and yeah most of you guy...
hey guys texture so in this video I have a drop test on the latest LG g3 device now this is actually the gold-coloured LG g3 this has not been released in the U...
hey guys techrax here so in this video we'll teach you guys how to make your iPhone indestructible this is essentially a case that's been around for yea...
hey guys techrax here soon in this video we had a train run over the iPhone 5s so we actually did this in two different instances initially we had a Space Gray ...
hey guys tech cracks here so in this video we're going to be dropped testing the newly released Amazon fire phone this is exclusive for AT&T and I belie...
hey guys techrax here so right here with me I have the Amazon fire phone this is the one I dropped and you know I thought what better what else do I do with thi...