Medicine·Endocrinology
Obesity
Informed by recognized medical guidance
Overview
Obesity is a medical condition where a person has an unhealthy amount of body fat. It is more than just being overweight — it can increase the risk for other health problems, such as heart disease, diabetes, and joint issues.
Key facts
- Obesity is measured using body mass index (BMI) and waist size, but these are only screening tools.
- It is caused by a combination of genetic, environmental, and lifestyle factors.
- With proper support and treatment, many people can improve their health and reduce risks.
Yes, obesity is very common worldwide. In the UK, about 1 in 4 adults is living with obesity, and rates have been rising over the past few decades.
Obesity can affect people of all ages, genders, and backgrounds. It is more common in some ethnic groups and in people with lower income or education levels, but it can happen to anyone.