Does late sleep really affect health? iSlide presentation design ppt template

With 18 PPTs tell you that late sleep really affects your health? A large study led by the American Cancer Society found that people who slept 8 hours a night had a higher mortality rate than those who slept 7 hours during a 6-year follow-up period. The effect of sleep changes on cognitive function in old age Researchers use 6 standard tests to evaluate cognitive function, including memory, reasoning ability, vocabulary, oral expression, written expression, and overall cognitive status ... Does late sleep really affect health? iSlide presentation design ppt template.