Whilst drinking water to hydrate, how does our body know when to stop drinking and we don’t drink too much?
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I have diabetes insipidus due to a pituitary tumour. This means my body can’t regulate water intake. I take a drug called desmopressin that helps a bit but it doesn’t last all 24hrs. So I take it at 10pm to stop me peeing all night and get some sleep but by about 2:30pm next day I start to get unbelievably thirsty, this makes me drink lots of water/juice/tea etc which then makes me pee literally minutes later. My body just doesn’t know ho to manage it..
Normally your body is like a bath. If it’s too full it takes out the plug for a while and if it’s too empty it turns on the taps. Thus you keep level. This is done by a hormone called adh that your pituitary gland excretes. When you have DI, the gland doesn’t work and the taps are on while the plug is open all the time. It’s bloody horrible. No cure either so I hope you never find out first hand what it’s like..
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