I am not sure why you are asking the same question over... even though you answered why, I don't understand.

I am NOT a doctor..

So for me, my personal body, it would depend on how much body fat that I have on me at the time.
The littler the body fat the faster the shut down process.

dehyration sets in fast for me, a very uncomfortable awful feeling of "not being in my 'right'" mind. dry heaves, as the fat drops of me, I lose my heart muscle resulting in permenant damage - ie shortness of breath, not being able to keep up PERMENANTLY, constipation - ie no bowel movements, urinity infections - including kidneys - it hurts to pee... and if you can cause you haven't got anything to pee so it leads to bateria growth, loss of fingernails and toenails - oh yeah fun -
stange thinking - electrolytes out of wacky.. so is your thinking...

a strange tiredness prevailing your entire body... emcomplising everything..

a giving of even wanting to do anything..

your friendships your family... they can't stand what it is you are doing to yourself and they HATE it... they LOVE you and they want you to LOVE you.

shutting down of system organs - kidneys, liver heart... going into the hospital
infections - white cell counts grow as infection sets in

having people talk about you like you don't exist..
except - how are we going to keep her systems going..

well I am Not a doctor... I am a person... I am a blunt person... I do not understand the mechanics of all that goes on in the body...

I have been 19 and have wondered if I would ever ever see
20...

So if you or anyone else wants to be offended by this post - have it deleted by all means.

If you want to do this to your body.... well know the outcome well is OH so much fun..
freewill