Sleep is very essential for good Health – Infact we need sleep to survive – just like we need food and water ..
What does sleep do?
(1) Energy conservation
According to the energy conservation theory Trusted Source, we need sleep to save energy. This concept is backed by the way our metabolic rate drops during sleep.
(2) Cellular restoration
Another theory, called the restorative theoryTrusted Source, says the body needs sleep to restore itself.
The idea is that sleep allows cells to repair and regrow. This is supported by many important processes that happen during sleep, including:
▪muscle repair
▪protein synthesis
▪tissue growth
▪hormone release
(3) Brain function
The brain plasticity theoryTrusted Source says sleep is required for brain function. Specifically, it allows your neurons, or nerve cells, to reorganize.
When you sleep, your brain’s glymphatic (waste clearance) system clears out waste from the central nervous system. It removes toxic byproducts from your brain, which build up throughout the day. This allows your brain to work well when you wake up.
Sleep affects many aspects of brain function, including:
▪learning
▪memory
▪problem solving skills
▪creativity
▪decision-making
▪focus
▪concentration
