Although we all understand the value of sleep, how often do we prioritize getting seven to nine hours each night? It's simple to let sleep fall to the bottom of the priority list when faced with social obligations, work demands, and the allure of late-night TV or social media scrolling. But we might need to be made aware that sleep is crucial for almost all aspects of our health. Getting the correct amount of sleep each night can have a profound impact on our feelings, thoughts, and overall functioning.
We bet you want to know the health benefits of getting 7-9 hours of sleep each night, as well as the science underlying sleep and its importance for the body to perform at its peak.
Why Is Sleep Such a Big Deal?
Our body naturally heals and rebuilds itself during sleep. Our body and brain carry out several essential functions while we sleep, including strengthening memory and healing damaged cells and tissues. Adults should aim for 7-9 hours of sleep each night, according to the National Sleep Foundation, (NSF recommended), and with good reason—this is the sweet spot that enables your body to do all essential tasks.
However, what happens if we don't get enough sleep? Lack of sleep for an extended period can cause several health issues. According to a sleep-heart study, there is a 29% higher risk of chronic illnesses like diabetes, obesity, and heart disease. (NIH study). Not only that but elevated stress levels, impaired immune system performance, and decreased cognitive function also come along.
- Brain health and sleep
Have you ever noticed how difficult it is to think rationally after a restless night? This clears the fact that sleep is essential for cognitive function. Your brain consolidates knowledge and experiences from the day as you sleep, enhancing memory formation and sharpening learning and concentration skills.
Your brain can't work well if you're sleep-deprived. It will probably be difficult for you to concentrate, decide what to do, or remember details. Furthermore, there is a connection between insufficient sleep and an increased chance of neurodegenerative illnesses like Alzheimer's. Indeed, some research indicates that the brain eliminates dangerous chemicals, including proteins connected to Alzheimer's disease, when we sleep. (NIH research).
- Heart health and sleep
Your heart needs to relax after working so hard all day as well. Sleeping for seven to nine hours a night reduces the risk of stroke, high blood pressure, and heart disease.
Your blood pressure naturally lowers while you sleep, which relaxes your heart. It is essential to keep your heart healthy to take this time of relaxation. Prolonged sleep deprivation has been demonstrated to elevate bodily inflammation, a primary cause of heart disease.
Less than seven hours of sleep every night increases the risk of high blood pressure, which can cause heart attacks and strokes, according to a report released by the American Heart Association. (AHA). On the other hand, obtaining the necessary quantity of sleep aids in controlling blood pressure and gradually enhances heart health.
- Immunity and Sleep System Operation
Did you know that your immune system is actively functioning when you sleep? Your body creates cytokines—proteins that aid the immune system in fending off infections, inflammation, and stress—while you are in a deep sleep.
Your immune system is weakened and you become more vulnerable to infections like the flu and the common cold when you don't get enough sleep. A body that has had enough sleep is better able to repel infections. Moreover, sleep affects the effectiveness of vaccinations. Studies show that people who don't get enough sleep might not react to vaccinations as well because their bodies might not make enough antibodies to fend against illnesses. (Current biology Article).
- Sleep and Mental Well-Being
The strong correlation between sleep and mental health is not surprising. Sleep deprivation can make mental health conditions like stress, anxiety, and depression worse. Sleep difficulties can be caused by mental health disorders, and mental health problems can exacerbate poor sleep.
However, the opposite is also true. Getting seven to nine hours of sleep a night can lift your spirits, lower your stress level, and strengthen your emotional fortitude. Sleep aids in the regulation of brain chemicals like serotonin that are involved in mood stabilization. For this reason, getting a good night's sleep can improve your mood, give you more energy, and help you overcome obstacles.
- Getting Adequate Sleep and Managing Weight
Getting enough sleep is essential if you're attempting to control your weight. Equally vital is maintaining a healthy diet and frequent exercise. Hormones that control hunger (ghrelin) and fullness (leptin) are influenced by sleep. Lack of sleep causes your body to generate less leptin and more ghrelin, which can increase hunger and cause overeating.
Inadequate sleep might also cause your metabolism to slow down, which can make it more difficult to lose weight. On the other hand, people who have enough sleep are more likely to stay at a healthy weight.
- Skin Health and Sleep
Desire skin that glows? Get into bed earlier! Your skin is actively healing itself as you're catching Z's. At this point, new skin cells develop and sleep is necessary for healthy, vibrant skin since it replaces the old ones.
Prolonged sleep deprivation can cause wrinkles to appear prematurely, swollen eyes, and a poor complexion. Additionally, it may hinder the skin's capacity to recover from environmental harm such as pollution and sun exposure. You're more prone to get fine wrinkles and dark circles under your eyes if you don't get enough sleep.
For good reason, doctors call adequate sleep "beauty sleep"—it's one of the simplest and most efficient strategies to keep skin looking young.
- Athletic Performance and Sleep
For individuals who engage in regular activity or are athletes, getting enough sleep is essential to improving their performance. Sleeping for seven to nine hours enhances muscle healing, coordination, and response time. It further lowers the chance of injury and aids in strength development.
Prioritizing sleep helps athletes perform better overall, react faster, and are more driven to train. Getting adequate sleep might help you get better training results and have less soreness after a workout, even if you're not a professional athlete.
- Slumber and Lifespan
Getting 7 to 9 hours of sleep every night is one of the finest things you can do if you want to live a longer, healthier life. According to studies, those who regularly receive enough sleep tend to live longer than those who suffer from chronic sleep deprivation. (NIH study).
How to Rest Well at Night
You're not alone if you find it difficult to obtain the suggested seven to nine hours of sleep each night. Many people experience problems sleeping, however, you can take the following actions to have a good night's sleep:
- Establish a nightly schedule by going to bed and waking up at the same time every day, including on the weekends.
- Minimize the amount of time you spend on screens before bed since the blue light from computers and phones can keep you from falling asleep.
- Create a sleep-friendly atmosphere in your bedroom: Invest in a cozy mattress and pillows, and keep the space quiet, dark, and chilly.
- Steer clear of coffee and heavy meals right before bedtime since they can cause sleep disturbances and difficulty falling asleep.
- Use relaxation methods to help you fall asleep, such as deep breathing, meditation, or reading before bed.
In summary: Getting Enough Sleep Is the Key to Better Health
Sleep is more than just slumber; it's about growth, healing, and restoration. It's essential to get between seven and nine hours of sleep every night to keep your emotional, mental, and physical well-being. Your whole health is affected by sleep in all areas, including weight management, heart health, brain function, and athletic performance.
Prioritizing sleep is an investment in a happier, healthier future. Thus, keep in mind that getting a few more hours of sleep could be the key to becoming a healthier version of yourself the next time you're tempted to stay up late.