A new study indicates that all types of body fat can be risky. In some people, perhaps about 30%, obesity does not seem to have serious effects on health. But in others it apparently stimulates immune system activity that leads to insulin resistance, hypertension, and low levels of “good” cholesterol.
Obesity can trigger inflammation in the fat cells found just below the skin, creating an environment that has been linked with the development of both diabetes and heart disease, two new studies indicate.
The findings suggest that people need to worry about all types of body fat, not just the deeply embedded fat that earlier work had focused on. But the new work also hints that some face a higher risk than others.