Certain health conditions also can lead to weight gain, including: Besides its physical consequences, obesity may also take an emotional toll: Some people with obesity experience depression, feelings of social isolation, discrimination and an overall lower quality of life, according to the Mayo Clinic.
Whether or not obesity should be considered a "disease" (or an abnormal state) is a matter of debate.
Weight loss medication should be used along with diet and exercise to help people lose weight, and some weight loss medications are only intended for short-term use.
Obesity increases the likelihood of various diseases and conditions, particularly cardiovascular diseases, type 2 diabetes, obstructive sleep apnea, certain types of cancer, osteoarthritis, and depression.
Behavior changes, such as understanding what stresses or situations may contribute to overeating and learning to modify these behaviors, are also important for achieving weight-loss goals.
Even small amounts of weight loss — such as 5 to 10 percent of your total body weight — can have health benefits, the CDC says.Excessive body weight is associated with various diseases and conditions, particularly cardiovascular diseases, diabetes mellitus type 2, obstructive sleep apnea, certain types of cancer, osteoarthritis, In contrast, a 2013 review found that grade 1 obesity (BMI 30–35) was not associated with higher mortality than normal weight, and that overweight (BMI 25–30) was associated with "lower" mortality than was normal weight (BMI 18.5–25).Other evidence suggests that the association of BMI and waist circumference with mortality is U- or J-shaped, while the association between waist-to-hip ratio and waist-to-height ratio with mortality is more positive.Obesity may also be linked to the company a person keeps: It has been found to "spread" socially among friends.A 2011 study published in the American Journal of Public Health suggested that the reason for this social spread was because friends share similar environments and carry out activities together that may contribute to weight gain.In 2013, the American Medical Association, the nation's largest group of physicians, voted to recognize obesity as a disease.The decision was meant to improve access to weight loss treatment, reduce the stigma of obesity and underscore the fact that obesity is not always a matter of self-control and willpower.Although there are lots of fad diets, such short-term dietary changes are not the best way to keep weight off permanently, the CDC says.Instead, people should aim to make long-term changes, such as eating healthy on a regular basis, and boosting daily physical activity.To achieve a healthy weight and adopt healthier eating habits, people may need to see several health professionals, including a dietitian, behavioral therapist, exercise physiologist and obesity expert, according to the Mayo Clinic.Working with a diverse team of health experts can help people make long-term changes in their eating and exercise habits and develop strategies to address any emotional and behavioral issues that may lead to weight gain and unhealthy lifestyle habits.