Researchers analyzed the sleep habits and body weight of 1,088 pairs of twins . Sleep deprivation puts stress on your body , and that stress could help explain the relationship between sleep and gene expression seen in the study , says Carl Boethel , M.D. , director of the Sleep Institute at Scott & White Healthcare , in Temple , Texas . Genes accounted for 80 % of BMI ##s in twins who slept less than seven hours . More research allows for environmental factors like exercise and diet to surface .
Researchers analyzed the sleep habits and body weight of 1,088 pairs of twins . Genes accounted for 80 % of BMI ##s in twins who slept less than seven hours . More research allows for environmental factors like exercise and diet to surface .