It depends on the individual. Some people are natrually thin and so will have normal body functions, depsite a low weight / low BMI. Usually, a girl / woman will begin to end menstruating with low body fat percentage or BMIs of below and 18.
With rapid or sudden extreme weight fluctuations, it can take a few months for the period to become normal or to return again.
They can't. When an anorexic person recovers s/he has to return to a "normal" eating pattern. This will make them gain at least some of the weight back. It varries (the amount of weight gained back) based on the person, how much they initially lost, and how much they recover. They would probably be able to return to their ariginal weight (assuming they began at a normal, healthy weight) or return to a healthy weight.
Sadly, no. After you loose a ton of weight while your anorexic, your body sort of gets used to the amount your eating and that's how you can sustain that weight. Once you start to eat more, you throw your body off track and will gain weight rapidly (or at least a lot quicker than you lost it).
just eat.
That depends on various factors which includes your current weight and length. Repost your question with this information.
No. It takes 3,500 calories to gain a solid pound of body weight. One meal will not do that.
gain weight. but stay healthy with it. Dont binge. Just set a goal weight and get an app.
well, it depends.if you have trouble loosing weight, and are very over weight, being anorexic wont help. diet and excercise will work the best. maybe you would loose a pound, but most of the time you will just gain even Moore weight.
You might not be anorexic, but you are underweight. You should get about 2250 calories per day until your weight goes up. Slow weight-gain is healthier than the quick kind.
No it is not possible to gain weight by just sleeping on your back.
You should focus on eating healthy foods in good portions. This includes fruits, vegetables, whole grains, lean proteins (like fish and no-fat meats), and low-fat dairy. It is important to recover to a healthy weight by eating good foods, and not a weight gain off of pure fat from junk foods.
If you're in good shape, and you didn't gain excess weight, you should be back to "normal" in about 6 weeks (that's within 90% of your old condition).
No, 800 calories is dangerously low and is still far below your normal caloric needs; calorie intake must be in excess of your daily requirements to gain any weight.