With great difficulty. There's no reasonable or healthy way to lose that much that fast.
yes but not recommended
well it depends on what your doing but if you can lose about 5 pounds in 2 days.
no you cant you can only lose it in days,weeks,or even months.
21st 10lb equates to 137.9kg
Not possible as far as I know. Never heard of such a thing. Did this happen to you?
You cannot do so safely.
Don't eat as much.
There is no healthy way to naturally lose 2 inches from your waist in 5 days. You can wear shape-ware clothing under your normal clothes.
Two pints is a significant amount of blood to lose.
Do a lot of diet or do not eat at all.
a 15 year old shouldn't be losing 5 pounds in 5 days unless your like obese. any weight lose has to be done with progression, you wouldn't loose fat in 5 days either you would just lose water weight. drink A LOT of water if you want to loose weight
just keep on exercising extremely for 5 days (running etc