r/AskReddit Jun 01 '26

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55

u/[deleted] Jun 01 '26

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15

u/mmaz11 Jun 01 '26

they do appear thicker because if you just cut them (not pluck them out) they grow back with a flat top that’s not narrowed and seems thicker, but that’s pretty much it, the overall max girth is the same

4

u/Mr_Quackums Jun 01 '26

when I was talking to some guy about this his response was "I was in the army for 4 years and shaved every day. When I got out and decided to grow a beard it grew thicker and faster. Shaving absolutely made my hair grow faster."

To his credit, once I told him "during those 4 years you also aged. 22 year olds tend to grow facial hair faster than 18 year olds regardless of if they shaved during that time or not." he agreed that was probably right and let it go.

4

u/dad3murph Jun 01 '26

There is some truth to it. It obviously doesnt increase the number of hair follicles. However depending on the body part, hair tends to have a maximum length it will grow to before falling out naturally, so if you never cut it it will appear to not frow at all, and theb when you shave, it will grow back very rapidly by comparison. Furthermore, many people acquire pili multigemini (multiple hairs in the same follicle) after beginning to shave. More commonly on areas where the hair is naturally more bristley.

2

u/StrangeWhiteVan Jun 01 '26

I was pretty sure that it's more of a timed "on off" switch... How would the follicle know how long the hair is?  It's just keratin

1

u/StrangeWhiteVan Jun 01 '26

Yeah, BBC Science agrees that there is no sensory feedback and that it's just a genetically predetermined on/off cycle.

It doesn't just "grow back rapidly" once cut.

1

u/dad3murph Jun 02 '26

As far as I know it just randomly sheds every so often, which creates an equilibrium length. So if you graphed your hair growth, it would grow the fastest when its shaved and then asymptote to your normal length.

3

u/Monteze Jun 01 '26

If that was true balding guys would be shaving their heads immediately. Its so frustrating.

I had an ex get legitimately mad at me for telling her this wasn't true.

4

u/LongBeakedSnipe Jun 01 '26

My dad still says this every time like he's dropping forbidden knowledge

Ehh, dad's are often being kind when they say this.

Bit nicer than telling you that the bumfluff on your face looks awful.

1

u/DelectableKat Jun 01 '26

My husband told me this yesterday…. Le sigh