The metabolic activity decides about our figure. It determines whether we stay lean even though we eat and drink according to our mood, or whether we become fat, even if we eat like a sparrow.If you gain weight, you're more likely to develop a number of potentially serious health problems like diabetes, high cholesterol, high blood pressure, metabolic disorders, heart disease, stroke, cancer and osteoarthritis.Causes of weight gain and overweight are hormonal imbalance, an a...