i think its possible. whatever exercise u do u are burning off fat. but if u want to exercise for a few hours then u should take breaks in between so u dont pass out. and in order to lose weight it wud be good to keep a schedule of ur exercise programs e.g running, plus a diet.
Eat healthily or eat small meals every few hours and this will help you to lose weight.
its imposible to lose weight in a few seconds
The only important amount of weight you can lose in a few hours is either through surgery or sweating. And sweating is fairly pointless as you put that weight right back on again once you've drunk enough not to be thirsty any more. For any important weight loss you have to give yourself more time. And control your eating. It's possible to lose 1-3 lbs/week on a fairly normal looking diet and some exercise.
You cannot lose a significant amount of actual body fat in 15 hours. .
You Lose Weight.
You can't really lose significant weight in 2 hours.
Typical faecal mass per day will vary from around 0.15kg to 0.27kg. See http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1411828&blobtype=pdf You only lose weight for a few hours, of course, as you will have to eat again.
Normally, if you eat as usual, you will not loose weight during therapeutic phlebotomy. The blood that you lose can be regenerated by your organism in a few hours. I would recommend you to eat some meat and drink a lot of juice after the procedure to prevent any possible weight loss.
Too many and you can gain weight. Too few and you can lose weight.
drink gulps of water
Engaging in 2 hours of cardio exercise daily can help you lose weight, as long as you also maintain a healthy diet and lifestyle.
Here are a few sites that can help you lose weight quickly from the following sites www.webmd.com/diet/guide/lose-weight-fast-how-to-do-it-safely , and the following www.slimfast.co.uk/