Discover how your sleep duration affects your health, cognitive function, and longevity. Customize by age to get personalized insights.
Sleep is essential for overall health and well-being. While 4 hours of sleep might seem sufficient for a busy lifestyle, research shows it significantly impairs cognitive function, emotional regulation, and physical health. Studies indicate that consistently sleeping only 4 hours can lead to impaired memory, decreased immune function, and increased risk of chronic diseases.
The optimal amount of sleep varies by age. While newborns need 14-17 hours, adults typically require 7-9 hours for optimal functioning. Teenagers and young adults often need more sleep than older adults due to their developmental stages and higher cognitive demands.
Regular sleep of less than 6 hours is associated with increased risk of cardiovascular disease, diabetes, and mental health issues. Conversely, consistently getting adequate sleep (7-9 hours for most adults) supports immune function, emotional stability, and cognitive performance, while potentially increasing longevity.