Usually you need the help of a doctor, even more than the overweight person does, in deciding whether or not you are actually underweight. If you are ten to fifteen pounds below the average weight, and if the bones stick out all over your body, or the muscles don't cover the back, thighs, and buttocks with resilient protection, or your face is thin and drawn, you are very likely underweight. But the figures in this table can't always answer your question. You may be the long, lean type whose weight normally runs below those given. Your doctor, by considering the results of your physical examination, including observations of the size and bony framework of your body, can decide fairly accurately whether you are underweight. Too many people worry over an underweight condition that does not actually exist, because they have accepted the "diagnosis" of well-intentioned friends or relatives-often individuals whose age or background leads them to believe "it is healthy to be stout." Let your doctor decide whether you are truly underweight in the sense of needing special treatment for it.Underweight persons have low immunity and often fell ill. Take this problem seriously and take nutrional food as per doctor's advice.