Skeptics Stack Exchange
Skeptics Stack Exchange

Questions tagged [hair]

A filamentous biomaterial that grows from follicles found in the dermis.

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If you shave or wax, will the hair grow back stronger or thicker?

Many people believe that if you shave or - especially - wax your legs, arms, chest, pubic hair or armpits then the hair will grow back stronger, or thicker, or more black, or more rapidly, or any combination of those. Is it actually true?
smzs
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Do nails and hair continue to grow after death?

I've heard that nails and hair continue to grow even after death. Is this true or just a myth?
Mostafiz Rahman
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Is a married woman in Michigan required to have her husband's permission to cut her hair?

Many sources indicate that there is a law on the books in Michigan requiring a married woman to get her husband's permission before cutting her own hair. According to the Huffington Post article The Craziest Laws That Still Exist In The United…
Robert Columbia
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Does heavy exercising increase beard growth?

The claim that exercise promotes beard growth is common around the Internet. The explanation that is the most common is that heavy exercising increases the testosterone levels in the body and that in turn increases beard growth. Does exercise indeed…
Hugo
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Is washing your hair too often bad?

This is one that I've heard on more than one occasion: "Don't wash your hair every day. Wash it every two days as washing it too often will damage it." Is there any truth in this? Can frequent hair washing cause hair loss?
Carra
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Does trimming your hair regularly make it grow faster?

I heard this recently from a friend who claims every hair stylist they've ever spoken to tells them this. After some searching I've found several articles claiming it and several more claiming it's nonsense, but I didn't find any studies. So the…
Jack
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Does stress cause hair to go grey?

Apart from aging, does stress or fear contribute in the change of hair color to grey/white?
Haider
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Does washing your hair with a coal-tar soap prevent hair loss and accommodate hair growth?

I have heard several people, including both a former dermatologist and a hair-dresser claim that coal-tar soap can help prevent hair-loss. The Herbs and Home Remedies site recommends it (combined with an egg yolk treatment). The commenter on a forum…
Vahan Lcf Harutyunyan
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Are blondes dumb or is it just a sarcastic saying?

Many a times in hollywood, blondes are projected as unitellegent, stupid and dull-witted. In fact a perception around the world can be realized about the same. In friends circle, TV shows and social networks, everyone keeps hinting in one way or the…
Pankaj Upadhyay
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Do you need to "wash, rinse and repeat"?

In a way, this is related to the question: Is washing your hair too often bad? A recent TEDxDraper talk by Kerry Bishop, "Toothpaste", repeated a statement I remember from my marketing lectures when I was at university. Namely that the word "repeat"…
Rincewind42
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Do long-haired men have better intuition?

I found an article on Worldwide Hippies which describes a military experiment on the intuitive abilities of Native American trackers: Then they would pair two men together who had received the same scores on all the tests. They would let one man in…
user16405
14
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Do hats or ponytails induce baldness?

There is a sort-of myth that wearing hats, tight ones in particular, can cause balding, or at least speed it up. Another one is wearing ponytails, or, more generally, hairstyles that tightly pull the hair. Popular online articles seem to unanimously…
Arturo don Juan
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Does shampoo containing pro-B5 affect the appearance of hair?

Many shampoos contain vitamins. Elvive Vitamax shampoo for example, is variously promised to contain "Vitamin pro-B5" which makes hair full of vitality. Is this additive useful?
Martin Tournoij
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Is shaving your pubic hair bad for you?

I've been told that it is currently very popular to shave you pubic hair, especially if you are a woman. There appears to be evidence that it is popular. This article from The Atlantic is titled: The New Full-Frontal: Has Pubic Hair in America Gone…
matt_black
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Do ionizing hair-dryers reduce frizz and drying time?

The new wave in Hair Dryer technology involves marketing benefits based on Ionization. Is there any evidence for any of this though? Conair® Turbo 1875: "Ionic technology helps enhance your hair's natural shine and eliminates frizz for…
Evan Carroll
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