Beard Keeping You Cool in Summer?

  • Thread starter chefralphson
  • Start date
  • Tags
    Cool
In summary: I was watching a ball game and the pitcher had a full thick beard. I wondered why you would have a beard in the summer time because of how hot it would be. My cousin told me that it would keep you cooler. Any reason why I should believe this? It doesn't make sense to me.In summary, the conversation discusses the question of whether having a beard in the summer time is a good idea due to the heat. While it may seem counterintuitive, having a beard can actually help keep you cooler. This is because the beard acts as insulation, impeding the transfer of heat and providing a cooling effect through sweat evaporation. Additionally, the beard can provide shade to the skin and prevent direct contact with the sun
  • #1
chefralphson
3
0
I was watching a ball game and the pitcher had a full thick beard. I wondered why you would have a beard in the summer time because of how hot it would be. My cousin told me that it would keep you cooler. Any reason why I should believe this? It doesn't make sense to me.
 
Physics news on Phys.org
  • #2
chefralphson said:
It doesn't make sense to me.
Like any insulation, it impedes the transfer of heat. If the surrounding air is above body temperature, the beard will keep you a bit cooler. It also traps sweat, and so contributes to evaporative coolling (and gives an opportunity for spit-balls).
 
  • #3
This is one for Astronuc...
 
  • #4
Danger has got some good points, but the ambient temperature over here has only ever exceeded body temperature (37 Celsius) a couple of times in my life. I've also had a fair beard a few times, and will say that they're much hotter, stickier and sweatier than being clean shaved. However, when it's drenched in sweat then the evaporative cooling effect (as Danger said) does seem to cool you down a lot better than wiping it off.

I'll second Galileo's call for Astronuc, PF's resident beardman!
 
  • #5
"Over here"? Here, it is 105 degrees outside right this minute!

In any case, a beard also "shades" the skin and can keep you cooler if you are in the sun.
 
  • #6
Galileo said:
This is one for Astronuc...
:rofl:
brewnog said:
I'll second Galileo's call for Astronuc . . .
:rofl: :rofl:
HallsofIvy said:
In any case, a beard also "shades" the skin and can keep you cooler if you are in the sun.
This is also my thought. The beard collects the sunlight, and heat is radiated/convected out, so the underlying skin does not get as hot as it would with direct contact to the sun. In my case, my beard covers a part of my chest.

The insulation effect works the other way too. It keeps the heat from the beard getting to the underlying skin. If one is out in the sun with an uncovered head, the exposed hair can get quite hot. The beard is not as dense and I imagine convection carries away much of the heat.

I have never put a thermocouple on my chin (at the base of the beard) so I haven't experimentally verified whether my chin is hotter or cooler than exposed skin. I guess I need to find an infrared pyrometer. I wonder if I can get an NSF grant. :biggrin:

My personal experience is that my beard does not bother me even when the temperature is 100-105°F (37.8-40.6°C). :smile:

The beard does keep my face and neck warm in winter, even in subzero temperatures. :biggrin:
 
  • #7
Astronuc said:
The insulation effect works the other way too. It keeps the heat from the beard getting to the underlying skin. If one is out in the sun with an uncovered head, the exposed hair can get quite hot. The beard is not as dense and I imagine convection carries away much of the heat.
:rofl: True, nice explanation. here is my attempt.

Your beard heats up because it absorbs the incoming light. Your beard gets 'hotter' then your body surface temperature. Now this yields a gradient in temperature between your body-surface and the beard (let us look at the part of your beard that covers your immense muscular chest) which is directly responsible for a flow of air that has a cooling effect. The nomades in the desert always dress in dark clothes for the very same reason.

regards
marlon
 
  • #8
We're missing the basic fact that having a beard makes you cool!
 
  • #9
<<thinks all the guys are cool here, with or without beards.

Do chins sweat? I know necks do, but I can't say I've ever had a sweaty chin. Maybe a guy thing?
 
  • #10
hypatia said:
<<thinks all the guys are cool here, with or without beards.

Aww, thanks love!

hyp said:
Do chins sweat?

You'd be amazed. Chins sweat, noses sweat, fingers sweat, knees sweat. Ears sweat, shoulders sweat, bellies sweat, and so do my elbows. It's very attractive, honestly!
 
  • #11
chefralphson said:
I wondered why you would have a beard in the summer time because of how hot it would be.

Because it looks so cool!
 
  • #12
Janus said:
Because it looks so cool!
A light colored beard is cooler than a dark colored one.

In the tropics people wear white or light colored clothes because they reflect light instead of absorbing it like would be the case of dark colored clothes…
 

1. How does having a beard keep you cool in the summer?

Having a beard can actually help keep you cool in the summer because it acts as a natural barrier against the sun's UV rays. The beard hair helps to block the sun from directly hitting your face, which can help keep you from getting overheated.

2. Does having a beard make you sweat more in the summer?

Contrary to popular belief, having a beard doesn't necessarily make you sweat more in the summer. In fact, the beard can help absorb sweat and keep it off your face, preventing it from dripping down and causing discomfort.

3. What type of beard is best for keeping cool in the summer?

A shorter beard is typically more effective at keeping you cool in the summer. This is because it is less likely to trap heat and can still provide the benefits of blocking the sun's rays and absorbing sweat.

4. Are there any downsides to keeping a beard in the summer?

One potential downside to keeping a beard in the summer is that it may require more maintenance. The heat and sweat can cause the beard to become more oily and prone to tangling, so it's important to keep it clean and well-groomed.

5. Can a beard protect against sunburn?

While a beard can provide some protection against the sun's UV rays, it is not a substitute for sunscreen. It's still important to apply sunscreen to your face, including your beard, to fully protect against sunburn and skin damage.

Similar threads

  • Other Physics Topics
Replies
8
Views
1K
  • Other Physics Topics
Replies
10
Views
3K
  • Other Physics Topics
Replies
9
Views
13K
  • Other Physics Topics
Replies
4
Views
1K
Replies
32
Views
2K
  • Other Physics Topics
Replies
12
Views
2K
  • DIY Projects
2
Replies
41
Views
7K
  • Other Physics Topics
Replies
6
Views
2K
Replies
15
Views
2K
  • Other Physics Topics
Replies
1
Views
2K
Back
Top