The body's "water ecosystem ... such as in conditions like diabetes and increased loss of fluids from diarrhoea, sweating or hyperventilating. How do you know if you're dehydrated?

The best way of checking that you are drinking enough is to look at the colour of your urine. If you are well-hydrated and drinking the correct amount of water it should be a very pale yellow colour.

So, what does dehydrated skin look like? And how can you tell if your skin ... and it can no longer retain water effectively.” Ultimately, knowing how to look out for the signs of both ...