### Theory:

In the early $$20$$'th century, it is difficult to find anyone obese on the streets. But if we see our modern world, most people are in obese condition. So the number of non-infectious diseases affected persons are high in our modern world. One of the significant causes of obesity is the usage of refined sugar has increased in our lifestyle. Because in olden days, sugar was an expensive product which cannot afford by everyone, but nowadays it is available at a lower price, and it is used by the masses most of the food product. This section will look at obesity, its causesrisk factorsprevention, and management.
The state in which there is an accumulation of excess body fat with an abnormal increase in body weight is known as obesity.
Obesity is a multifaceted chronic disease that develops due to social, behavioural, psychological, metabolic, and biological components.
If the intake of calories is more than energy expenditure, it leads to obesity.
When the body weight is more than the mean, standard weight for age and height of an individual, it leads to conditions such as for over weight and obesity.
An estimate of body fat and health risk is known as Body mass index (BMI).

BMI weight obesity scale

Causes and risk factors:
Causes:

Genetic factors, physical inactivity, endocrine factors and eating habits (overeating) causes obesity.

Risk factors:

Obesity raises the chances of developing hypertension, diabetes, gallstones, coronary heart disease, and arthritis.

A picture explains the risk factors, reasons and prevention of obesity.
Prevention and control of obesity:
Diet management:

Being overweight can be prevented by low calories, normal protein, vitamins and minerals, carbohydrates and fats that are restricted, high fibre diet can prevent overweight.

Physical exercise:

Eating a low-calorie diet and exercising can help you lose weight. Meditation, yoga, and physical activity can also help relieve the stress caused by overeating.
Reference:
https://commons.wikimedia.org/wiki/File:BMI_weight_obesity_scale.jpg