Why we sleep and why it's important to our overall health

Lack of sleep affects our mood, performance, and productivity. But people tend to forego or decrease sleep time when they’re too busy. You might think this gives you more time to tackle your to-do list, but it actually reduces the quality of your work and health if this is a regular occurrence.

In this post, we talk more about the importance of sleep and why it’s vital to our overall health.

Why people sleep

Sleep is crucial for survival. The better your sleep quality, the more you can do during your waking hours.

Even if you think you can still function with fewer hours of sleep, there’s a lot your body could be missing out on.

Although it’s still unclear why people sleep, it’s safe to say our body needs it. Here are some theories that discuss the reason for sleep:

Inactivity. Inactivity theory suggests that sleep is a survival function keeping individuals or organisms away from harm, especially at times where they’re more likely to be vulnerable. According to this theory, animals that can stay still and quiet have an advantage over those that remain active.
Energy conservation. This theory explains that we need sleep to conserve energy. The body’s caloric demand and body temperature decrease during sleep. Our demand for energy declines, be it day or night, especially when it’s inconvenient to hunt for food.
Recuperation. The restorative theory says that sleep allows the body to replenish what it lost during its wake time. It lets the body repair and rejuvenate. It supports several body functions such as tissue growth, muscle repair, and hormone production, which can only happen during sleep.
Brain plasticity. Brain plasticity theory states that sleep is responsible for various brain processes. This is why it’s critical for infants and young children to have at least 13 to 14 hours of sleep daily. Sleep is also linked to people’s ability to learn, process information, and perform tasks.

Sleep isn’t fully understood yet, and no single theory can explain it. But the body craving sleep after a long day and the brain performing less when it doesn’t get enough of it should tell how important it is.

How important sleep is to overall health

Do you feel more alert and refreshed after a nap or sleep? Here are some of the benefits linked to getting a good night’s sleep:

Boost productivity. When you’re fully rested, you can focus and perform better. Poor sleep can decrease concentration and productivity in the workplace. It can also result in fatigue-related losses and low safety outcomes. In another study, researchers found that sleep quality and time in bed can impact children’s performance in school and daily life.
Manage weight better. When you’re sleep-deprived, you tend to feel drowsy during the day. Lack of sleep is also linked to weight issues, such as obesity. According to researchers, good sleep gives you better control of your appetite and food choices. You’re less likely to reach for junk food. But if you’re low on sleep, the desire for certain food tends to strengthen, and your sense of resistance weakens.
Reduce cardiovascular risk. Sleep is also associated with heart health. Sleep conditions, such as sleep apnea and insomnia, can lead to high blood pressure and heart failure. Sleeping in short durations can increase mortality rates for persons diagnosed with cardiovascular disease.
Strengthen the immune system. Sleep and the immune system affect each other. Loss of sleep can impair the body’s immunity. People who get a full night of sleep have healthier immune systems to fight infections, heal wounds, and recover from sickness.
Improve social interactions. Sleep is also connected to emotional regulation. If you don’t get enough sleep, you’re less likely to recognize other people’s emotions and expressions, which can then impact your social interactions. In another study, researchers found that poor sleep can contribute to loneliness and social anxiety.

Sleep better, smile often, and improve your overall well being

Sleep makes us feel better, happier, and healthier. See a healthcare professional if you feel you may have conditions that keep you from getting quality sleep.

Consider talking to your dentist in Peace River, Alberta, too since some sleep-related issues like sleep apnea may be connected to dental problems. Your dentist can recommend a custom treatment plan to protect your dental health and help you sleep better.