What Happens When You Get Enough Sleep?

Sleep is essential for our health and well-being, but many of us do not get enough of it. According to the Centers for Disease Control and Prevention, about one in three adults in the United States do not get the recommended seven hours of sleep per night. This can have negative consequences for our physical, mental, and emotional health, as well as our performance and productivity. On the other hand, getting enough sleep can have many benefits for our body and mind, such as:

Improves Your Memory and Learning

Sleep plays a vital role in consolidating and enhancing our memory and learning abilities. During sleep, our brain processes and stores the information that we have acquired during the day, and strengthens the connections between the neurons that are involved in memory formation. This helps us to recall and apply the information better when we are awake. Sleep also helps us to learn new skills, such as playing an instrument, speaking a language, or driving a car, by enhancing our motor memory and coordination.

Boosts Your Immune System

Sleep can also help us to fight off infections and diseases, by boosting our immune system and its response. During sleep, our body produces and releases various immune cells and molecules, such as cytokines, antibodies, and natural killer cells, that can target and eliminate pathogens, such as bacteria, viruses, and parasites. Sleep also helps to regulate the inflammation and stress hormones that can affect our immune function. Therefore, getting enough sleep can help us to prevent or recover from illnesses, such as the common cold, the flu, or COVID-19.

Enhances Your Mood and Mental Health

Sleep can also affect our mood and mental health, by influencing our emotions, thoughts, and behaviors. During sleep, our brain regulates the levels of neurotransmitters and hormones, such as serotonin, dopamine, and cortisol, that are involved in mood regulation, stress response, and reward systems. Sleep also helps us to cope with negative emotions, such as anger, sadness, and fear, by reducing their intensity and impact. Therefore, getting enough sleep can help us to feel happier, calmer, and more positive, and reduce the risk of developing mental disorders, such as depression, anxiety, and bipolar disorder.

Supports Your Weight Management

Sleep can also help us to maintain a healthy weight, by affecting our appetite, metabolism, and energy expenditure. During sleep, our body balances the levels of hormones, such as leptin and ghrelin, that control our hunger and satiety signals. Sleep also affects the activity of the brain regions that are involved in food reward and decision-making. Therefore, getting enough sleep can help us to reduce our cravings, eat less, and make healthier food choices. Sleep also helps us to burn more calories, by increasing our resting metabolic rate and thermogenesis.

Protects Your Heart Health

Sleep can also help us to prevent or reduce the risk of cardiovascular diseases, such as high blood pressure, heart attack, and stroke, by affecting our blood pressure, heart rate, and blood vessel function. During sleep, our body lowers our blood pressure and heart rate, and relaxes our blood vessels, to reduce the workload and stress on our heart. Sleep also helps to regulate the levels of cholesterol, glucose, and insulin, which can affect our cardiovascular health. Therefore, getting enough sleep can help us to keep our hearts healthy and strong.


Getting enough sleep is not a luxury, but a necessity, for our health and well-being. Sleep can have many benefits for our body and mind, such as improving our memory and learning, boosting our immune system, enhancing our mood and mental health, supporting our weight management, and protecting our heart health. Therefore, we should make sleep a priority, and follow the recommended guidelines for optimal sleep quality and quantity. By getting enough sleep, we can improve our quality of life, and enjoy a happier and healthier life.


1Short Sleep Duration Among US Adults – CDC 2Sleep, Learning, and Memory – Harvard Medical School 3How Sleep Enhances Motor Learning – NCBI 4Sleep and immune function – NCBI 5Sleep and immune response to COVID-19 vaccination – NCBI : [Sleep and mood – Harvard Medical School] : [Sleep and mental health – Harvard Medical School] : [Sleep and weight gain: What’s the connection? – Mayo Clinic] : [Sleep and metabolism: an overview – NCBI] : [Sleep and Cardiovascular Disease – NCBI] : [Sleep and heart health – Harvard Medical School]