Research from Stanford found improved athletic performance when their basketball team slept more, and a Northwestern University study also found that people exercised longer on days following good sleep. Several studies also associate too little sleep with higher body fat and greater risk of obesity.
But not only does sleep boost your workouts and possibly weight loss, getting regular exercise also benefits your sleep quality, creating a symbiotic and complementary relationship.
Several studies show that regular exercise contributes to better quality rest and more overall sleep. University of Georgia research recently associated lower cardiorespiratory fitness levels with higher risk of sleep problems, and over time, regular exercise has been shown to help alleviate insomnia.