This makes you feel hungrier than when you're well-rested.

Helps support a healthy balance of the hormones that make you feel hungry (ghrelin) or full (leptin): When you don't get enough sleep, your level of ghrelin goes up and your level of leptin goes down.Heals and repairs your heart and blood vessels.Sleep plays an important role in your physical health. They also may have problems paying attention, and they may get lower grades and feel stressed. They may feel angry and impulsive, have mood swings, feel sad or depressed, or lack motivation. Sleep deficiency has also been linked to depression, suicide, and risk-taking behavior.Ĭhildren and teens who are sleep deficient may have problems getting along with others. If you're sleep deficient, you may have trouble making decisions, solving problems, controlling your emotions and behavior, and coping with change. Studies also show that sleep deficiency changes activity in some parts of the brain. Sleep also helps you pay attention, make decisions, and be creative. Studies show that a good night's sleep improves learning and problem-solving skills. It's forming new pathways to help you learn and remember information. While you're sleeping, your brain is getting ready for the next day.

It also can affect how well you think, react, work, learn, and get along with others. For example, ongoing sleep deficiency can raise your risk of some chronic health problems. The damage from sleep deficiency can happen in an instant (such as a car crash), or it can harm you over time. In children and teens, sleep also helps support growth and development.

During sleep, your body is working to support healthy brain function and support your physical health. The way you feel while you're awake depends in part on what happens while you're sleeping.

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