“He gives his beloved sleep, ” Psalm 127:2.
I just had a great sleep, dreams galore and woke late.
Do you pray for a good sleep? Do you thank the Lord for a good sleep?
Sleep is fascinating. Why must we sleep a large portion of our lives?
Extracts from great website below
Sleep is an important part of your daily routine—you spend about one-third of your time doing it. Quality sleep – and getting enough of it at the right times — is as essential to survival as food and water. Without sleep you can’t form or maintain the pathways in your brain that let you learn and create new memories, and it’s harder to concentrate and respond quickly.
Sleep is important to a number of brain functions, including how nerve cells (neurons) communicate with each other. In fact, your brain and body stay remarkably active while you sleep. Recent findings suggest that sleep plays a housekeeping role that removes toxins in your brain that build up while you are awake.
Everyone needs sleep, but its biological purpose remains a mystery. Sleep affects almost every type of tissue and system in the body – from the brain, heart, and lungs to metabolism, immune function, mood, and disease resistance. Research shows that a chronic lack of sleep, or getting poor quality sleep, increases the risk of disorders including high blood pressure, cardiovascular disease, diabetes, depression, and obesity.
Sleep is a complex and dynamic process that affects how you function in ways scientists are now beginning to understand. This booklet describes how your need for sleep is regulated and what happens in the brain during sleep.
Sleep is either REM (Rapid Eye Movement) or non-REM sleep. You sleep in cycles between the two.
A typical sleep:
REM sleep is when you dream.
According to the National Sleep Foundation, REM sleep is believed to benefit learning, memory, and mood. It is also thought to contribute to brain development in infants. A lack of REM sleep may have adverse implications for physical and emotional health. It consists 25% of sleep time.
Non-REM sleep (restorative sleep)
Light sleep leads to deeper sleep. Body temperature drops and heart rate slows down. Then the state of deep and restorative sleep known as slow-wave sleep, or delta sleep. The muscles relax, the supply of blood to the muscles increases, and the body repairs and grows tissue. Hormones are released and energy stores are replenished. As people age, they tend to get less NREM sleep. Those under 30 usually experience 2 hours of restorative sleep nightly while older adults may get just 30 minutes.
Thank the Lord for sleep.