It is not a diet and lifestyle that make you obese. There is another factor that lies in your part of DNA called gene that may influence the shape of your body. A study has recently revealed that genes may play a role in regulating body shape. The effect of genes may be stronger for women than for men. Scientists have found gene variations linked to obesity and fat,  which explains why some people are apple-shaped and some are pear-shaped. previous studies found that when we store fat in our bodies it can affect our health. More fat around the waist is linked with an increased risk of type 2 diabetes and heart disease while having a fat posterior and thighs may offer some protection against diabetes and heart disease.     Experts have opined that in most cases obesity is caused by an unhealthy diet and lifestyle and that tackling obesity is challenging. However, recent development in genetics will enable more targeted approaches to obesity prevention and to the invention of new drugs.