Weight gain or loss after a bath?

[anonymous-user]

Does a normal bath increase or reduce weight for a short period after?

Google won’t help. However in the one hand sweating will lose weight but on the other hand osmosis would gain weight and bodies dragged out of rivers are normally bloated.

Any human biologists out there?

Edited by anonymous-user on Sunday 26th August 06:08

[227bhp]

Weigh yourself and tell us.

[Mothersruin]

Eureka!

[The_Doc]

I dont think there's any osmosis across the skin. It isn't that sort of membrane, it's a very complex multilayered structure, with quite a lot of hydrophilic fat.

But it can soak up water, viz your prune fingers.

And skin is thought to weigh about 10kg, so theorising that it takes on another 50% weight......


Perhaps a 5kg gain.

But then in a hot bath you will sweat and exhale fluid more to cool down. So perhaps it's offset.

I think some experimental data is needed

There's also micturition losses....

[Steve91]

Funnily I weighed myself before and after my shower this morning (I still don't know why) and there was no change. Maybe a bath would be different?

[popeyewhite]

The_Doc said:

I dont think there's any osmosis across the skin. It isn't that sort of membrane, it's a very complex multilayered structure, with quite a lot of hydrophilic fat.

But it can soak up water, viz your prune fingers.

Funnily enough I read something about this the other day: fingers wrinkle in the wet not as a result of water absorption but it's an evolutionary measure that causes skin furrowing and thus channels for water run off. Essentially it's a way of improving grip. It was news to me anyway.

[anonymous-user]

227bhp said:

Weigh yourself and tell us.

I’ll try this when I remember and post the results. There has to be some sort of change.
I thought drowned bodies were bloated after a while but a half hour bath may not be long enough to show.

[Mothersruin]

V6 Pushfit said:

227bhp said:

Weigh yourself and tell us.

I’ll try this when I remember and post the results. There has to be some sort of change.
I thought drowned bodies were bloated after a while but a half hour bath may not be long enough to show.

Bodies bloat from intenal gas build up amongst other things.

[227bhp]

Mothersruin said:

V6 Pushfit said:

227bhp said:

Weigh yourself and tell us.

I’ll try this when I remember and post the results. There has to be some sort of change.
I thought drowned bodies were bloated after a while but a half hour bath may not be long enough to show.

Bodies bloat from intenal gas build up amongst other things.

Water will fill up a dead body via the various orifices.

You'll need some super accurate scales as I don't think it will be much.
My guess is you'll lose a little due to sweat - unless you plan on having a cold bath

[Monkeylegend]

Depends how dirty you are when you get in, and if you pee in the bath.

[The_Doc]

popeyewhite said:

The_Doc said:

I dont think there's any osmosis across the skin. It isn't that sort of membrane, it's a very complex multilayered structure, with quite a lot of hydrophilic fat.

But it can soak up water, viz your prune fingers.

Funnily enough I read something about this the other day: fingers wrinkle in the wet not as a result of water absorption but it's an evolutionary measure that causes skin furrowing and thus channels for water run off. Essentially it's a way of improving grip. It was news to me anyway.

I can't believe this. Where did you get it from?
Wet skin is much heavier and not just on the fingers. If you cut wet skin on any other area, it's still thickened and white. The wrinkling is surely just a feature of the finger tip pad evolutionary process, (which is very clever.) It spreads load and allows our very precise sensory feedback, without being too firm

[popeyewhite]

The_Doc said:

I can't believe this. Where did you get it from?

I honestly can't remember but I *cough* Googled it and it checks out.

[M400 NBL]

You will lose weight in a hot bath. When your core temperature reaches a certain temperature (different for each individual) you will sweat. Whether it's a sauna, steam room or a hot bath.

[BMWBen]

Are we talking before or after you've dried yourself?

[LordGrover]

The_Doc said:

...

There's also micturition losses....

Peeing in the bath?