The Big Number: 36 percent of adults worldwide suffer sleep problem during the pandemic

Beyond making you tired the next day, lack of sleep raises your risk for health issues, such as heart disease, stroke, obesity, diabetes, dementia and more. Good sleep, on the other hand, can improve your mood and health overall and benefit your brain, helping you think clearly and focus on tasks. Standard recommendations call for adults to get at least seven hours of sleep each night — seven to nine hours until age 64, seven to eight hours from age 65 on. About a third of adults get less than the recommended amount, according to the Centers for Disease Control and Prevention.