Understanding Sleep
Scientists still don't really know why we sleep, especially when considering it from an evolutionary perspective. For example, if you look back in time to the age of hunters and gatherers, then why sleep for numerous hours when you could instead find your next meal or avoid the various dangers out in the wild? Thinking about sleep in this manner makes it logical to reason that sleep must be critically important, otherwise humans would have evolved out of it. However, even though the reason for sleeping may be unclear, research has begun to uncover some of its many benefits.
Sleep Benefits
Discover how quality sleep can help reduce the risk of chronic diseases and improve overall health.
Metabolism & Hormone Balance
Good sleep allows for the body to efficiently regulate insulin, appetite, stress, growth, and many other hormones, in addition to its metabolism. On the other hand, poor sleep can lead to increased hunger and cravings, disrupted muscle repair, and unbalanced hormone levels, which ultimately increases the risk of developing obesity, type 2 diabetes, and metabolic syndrome.
Protects Heart and Blood Vessels
Sleep helps to control blood pressure, inflammation, and stress. Strong sleep habits can help reduce the risk of associated health conditions, including diabetes, hypertension, and stroke.
Strengthens Immune System
While asleep, the body produces various immune cells and repairs damaged tissues. Having a strong immunity can reduce inflammation and even prevent certain cancers.
Memory Consolidation, Learning, and Mood
Healthy sleep allows the brain to consolidate new information, strengthen neural connections, and make space for new memories. In fact, a poor night's rest can cut learning ability by up to 40%! What's more, the brain processes emotions during sleep, balancing hormones and providing a mental "reset".
