Healthy Lifestyle Healthy Habits What Happens to Your Body When You Get a Good Night's Sleep Getting enough sleep can do wonders for your health—here's what you need to know. By Andrea Mathis, M.A., RDN, LD Andrea Mathis, M.A., RDN, LD Andrea is an Alabama-based registered dietitian nutritionist and owner of the healthy food blogs, Beautiful Eats & Things, and Little Eats & Things and author of The Complete Book of Smoothies. Andrea has worked in several healthcare settings including clinical, public health and long-term care. Andrea believes in achieving optimal health by incorporating healthier eating habits into your lifestyle and making healthy eating fun! When she's not running after her two boys, she enjoys creating content to encourage self-love and promote body positivity. EatingWell's Editorial Guidelines Published on September 18, 2020 Reviewed by Dietitian Victoria Seaver, M.S., RD Reviewed by Dietitian Victoria Seaver, M.S., RD Victoria Seaver is a registered dietitian and Editorial Director for EatingWell.com. She completed her undergraduate degree in nutrition, dietetics and food science and her masters degree and dietetic internship at the University of Vermont. Victoria has been a part of the EatingWell.com team since 2015. EatingWell's Editorial Guidelines It's no secret that most of us don't get enough sleep. Between our busy jobs and our busy home lives, getting the proper amount of sleep tends to get put on the back burner. You may not realize this, but a lack of sleep can affect your daily activity regimen. According to the National Sleep Foundation, 45% of Americans say that poor or insufficient sleep affected their daily activities at least once in the past seven days. In addition to the effects on daily activities, a lack of sleep can also affect your quality of health. Findings from the Sleep Healthy Index showed that 67% of those with less than good sleep quality also reported "poor" or "only fair" health, with 27% reporting otherwise "good" health. What Happens to Your Body If You Don't Get Enough Sleep? So, how much sleep do we need? Most of us need seven to nine hours of sleep each night, according to the National Sleep Foundation. Babies, young children and teens need even more sleep to support their growth and development. We generally tend to consider eight hours of sleep as the proper amount of rest, but some people may need more or less. To help determine the right amount for you, do a simple sleep evaluation. If you wake up tired and spend the day craving a nap, it's likely that you're not getting enough sleep. If this is the case, try adding another hour of sleep to your usual amount. 9 Foods to Help You Sleep (and Why They Work) What happens to your body when you actually get enough sleep? Sleep plays an important role in our health and comes with some great benefits. Here are a few perks of a good night's sleep: Boosts Your Immunity When you allow your body to get enough sleep, it helps to boost your immune system to fight off those pesky germs. Getting the proper amount of sleep helps your body produce sufficient amounts of cytokines, a type of protein that targets infection and inflammation—creating an immune response. Cytokines are produced and released during sleep. Without enough sleep, your body would not be able to produce enough cytokines to fight off those infections. Improves Heart Health Did you know that getting a sufficient amount of sleep is linked to a healthier heart? According to the Centers for Disease Control and Prevention, adults who sleep less than seven hours each night are more likely to experience health problems such as heart attacks and high blood pressure. When you get a sufficient amount of sleep, your blood pressure goes down. Not getting enough sleep can cause your blood pressure to go higher for a longer amount of time, causing additional health concerns. This Is the #1 Food for Better Sleep, According to a Dietitian Stabilizes Your Weight In addition to eating a well-balanced diet and exercising, sleep is also necessary for maintaining a healthy body weight. Sleep and weight have been linked by scientists for quite some time. Studies show that a decreased amount of sleep was linked to increased weight, and continued unwanted weight gain over time. Middle-aged adults who slept fewer than seven hours per night had higher weights per height, and were more likely to be categorized as having obesity than those who slept seven or more hours. 6 Sleep Habits That Can Help You Lose Weight Results in Healthier Skin Did you know that "beauty rest" is a real thing? During sleep, your body delivers fluids to organs and tissues that need replenishing, while removing excess fluids from other areas. Sleep also allows the body to make more collagen, which causes smoother skin. Research shows that these processes can help to reduce the appearance of drooping eyelids, swollen eyes, dark under-eye circles, wrinkles and fine lines. The Bottom Line Sleep plays an important role in our lives and can affect our daily activity regimen. Getting a good night's sleep can offer some great health benefits, such as boosting immunity, improving heart health, stabilizing your weight and maintaining healthier skin. If you're having trouble getting enough shut-eye, check out these four ways to get a better night's sleep. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit