Why is being overweight a major health problem? How does a person become overweight? Why is losing weight necessary? All these questions occur in a person's mind when they are obese. Many people across the world are struggling with different health diseases. Most of the population is dealing with severe health problems like obesity, being overweight, and heart attacks. The main reasons behind being overweight are the consumption of unhealthy foods and the lack of exercise daily. If people do not go for regular fitness, then they might suffer from numerous health diseases.