We live in a high-stress society in which most people do not get enough sleep. If you are one of those people, you could be paying for it with your health. Sleep deprivation is linked to obesity heart disease, arthritis, diabetes and cancer. A 7 year Finnish study of nearly 9000 people, found people who developed sleep problems during the experiment gained more weight than those with normal sleep patterns. Trouble falling asleep, waking during the night, or trouble staying asleep increased the risk of weight gain by more than 50%. Night time snacking is common in overweight people with sleep disorders. The body produces powerful signalling chemicals during sleep deprivation that promote overeating. Chronically sleeping less than 6 hours per night is linked to obesity and type II diabetes.