Losing even one night of sleep can alter your genes putting you at an increased risk of obesity and Type 2 diabetes new research says. Swedish researchers at Uppsala University and the Karolinska Institutet found that genes that control the biological clocks in cells throughout the body are altered even after one night of sleep loss. Previous research has shown that our metabolism is negatively affected by sleep loss which has been linked to an increased risk of obesity and type 2 diabetes. The results indicate that changes of our clock genes may be linked to negative effects (like obesity