Spurs form on the posteriorolecranon at the triceps insertion, and osteophytes form along thearticular margin.Figure 1 A small olecranon spur is seen on the right olecranonof a skeleton in Bernard Albinusâ 1747 publication Tabulae sceletiet musculorum corporis. Image courtesy of the National Libraryof Medicine.
The number of overweight children in Australia has doubled in recent years, with a quarter of children considered overweight or obese. Causes of obesity in children include unhealthy food choices, lack of physical activity and family eating habits. This rise in the number of overweight children is disturbing, because it causes health problems and can lead to social problems.
For example, the incidence of type 2 diabetes has increased rapidly in teens, with obesity present in virtually all cases. In addition, obese children are more likely to be obese as adults. Thus, obesity puts a child's health at lifelong higher risk. Causes of childhood obesity Both genes and environment contribute to obesity, but the interaction is far from simple. Obesity is a complex condition with many interrelated causes. There is significant evidence that obesity is at least partly genetic. Certain ethnic groups are more vulnerable to obesity and obesity-related disorders. Genome-wide association studies show that some genes are associated with a higher body mass index.