If you don't weigh much and are little, does it take a longer or shorter amount of time to dehydrate?

Question

If you don't weigh much and are little, does it take a longer or shorter amount of time to dehydrate?
I have a small teenage sister. She is 14 and weighs about 100. She is 5'5 in heighth. Will she dehydrate faster or slower than a big/fat/normal person.

Is she going to dehydrate fast? I am afraid she might be sick or something.

By the way, she drinks a ton of sodas.

Answer 1

i'm pretty thin and i have a friend who is thin and we've both been dehydrated more times than we can count. i drink a lot, but every time i go to the doctor, he tells me i need to drink more. just tell her to drink A LOT

Answer 2

Less body fat means less water retention in your body. She'll dehydrate much faster than a larger person but the larger person will feel the effects much worse than your sister. Luckily for her though, it will also take less time to recuperate from the effects of dehydration.

Answer 3

Yes. As a rule smaller people dehydrate faster.

If she's sick she should see a doctor.

Answer 4

she will dehydrate faster. she is already underweight for someone of her height. make sure she's getting the right fluids, especially water. tell her not to drink a lot of soft drinks or coffee, those dehydrate you faster.

Answer 5

She will dehydrate a bit faster, but in practise not a lot.

Answer 6

A shorter amount of time. Babies dehydrate very quickly.

Answer 7

I would think faster. Better consult a doctor.