Weight loss is considered as the reduction in the total body weight of a person. This may happen because of many reasons. It can also be intentional or unintentional. In case of unintentional weight loss, illness or some disease becomes the main factor for the reduction of body weight. For instance diabetes mellitus is one such disease which leads to weight loss. This disease is insulin dependent which causes lack of insulin in the blood. Due to this glucose level increases which causes the triglycerides to release from adipose tissue. After that the process of catabolism takes place that results in the loss of body fat which in turn leads to weight loss.

There are certain other factors that results in the loss of body weight. For example if the fluid intake is less then also weight loss is possible. In such case, fluid loss can be triggered more by other things. If any person is suffering from infections like HIV then also there are maximum chances of weight loss because HIV virus has the capability of altering metabolism. Various hormonal disruptions like over release of thyroxin from thyroid gland can also lead to reduction in weight. All these factors lead to unintentional weight loss.

Now there is other case of intentional weight loss. In this case, a person tries to improve his health and fitness by losing the extra fat and mass. Those people who are declared as obese have a larger risk of developing many types of diseases. Therefore they can reduce their overweight with the help of many therapies. The first and most important therapy is physiotherapy. Weight loss will occur when an individual will use his extra fat and lean mass in any physical work. Apart from this weight loss can also be done through various medicines.

Those people who have an ideal weight should also be very careful because they can seek extra weight any time. It is advised for all the people to have a regular check of their body weight. This is because being both underweight and overweight is harmful for health. If somebody is underweight then he could be more prone to infections and it can also result in weak muscles, osteoporosis etc. In case of overweight there is more risk of heart diseases, high blood pressure, osteoarthritis etc. That is why it is very important to maintain your normal body weight.