Learn more about scienceandnature with this collection
Ways to improve productivity
Strategies for reducing stress
Tips for managing email overload
REM is an active and final phase of the four-stage sleep cycle characterised by increased brain activity and autonomic nervous system functions. The brainstem and hypothalamus mostly control this stage of sleep.
Many theories hypothesise that REM sleep is helpful for learning and memory formation, but the purpose and benefits of REM sleep are still unknown.
Before REM sleep, the three prior stages of sleep occur progressively slow bodily function and brain activity. These stages are known as non-REM or N1, N2, and N3.
However, during REM sleep, the eyes move rapidly sideways. The heart rate, respiratory rate and blood pressure increase to their values while awake.
REM sleep is the longest period of the sleep cycle, lasting 70 to 120 minutes.
During REM sleep, brain wave activity increase, as measured on an electroencephalogram (EEG).
The most vivid dreams occur during REM sleep. These dreams are often elaborate and emotional experiences that include sadness, anger, apprehension or fear. A person can more readily recall a dream when they awake from REM sleep. However, the purpose of dream content is not currently understood.
Sigmund Freud suggested dreams were a representation of unconscious thought. Another hypothesis proposes that dreams are a random brain activity during REM sleep and not a meaningful experience.
Non-REM sleep is necessary in order to survive. Mild sleep deprivation increases the risk of chronic health conditions and severe sleep deprivation can lead to hallucinations or death.
However, the benefits of REM sleep remain inconclusive. Studies show no obvious adverse effects when participants were deprived of REM sleep.
Silence is the way to avoid many problems & Smile is the way to solve many problems.
MORE LIKE THIS
Ready for the next level?
Read Like a Pro
Explore the World’s
Save ideas for later reading, for personalized stashes, or for remembering it later.
# Personal Growth
Take Your Ideas
Just press play and we take care of the words.
No Internet access? No problem. Within the mobile app, all your ideas are available, even when offline.
Ideas for your next work project? Quotes that inspire you? Put them in the right place so you never lose them.
2 Million Stashers
This app is LOADED with RELEVANT, HELPFUL, AND EDUCATIONAL material. It is creatively intellectual, yet minimal enough to not overstimulate and create a learning block. I am exceptionally impressed with this app!
Great interesting short snippets of informative articles. Highly recommended to anyone who loves information and lacks patience.
Don’t look further if you love learning new things. A refreshing concept that provides quick ideas for busy thought leaders.
Best app ever! You heard it right. This app has helped me get back on my quest to get things done while equipping myself with knowledge everyday.
Great for quick bits of information and interesting ideas around whatever topics you are interested in. Visually, it looks great as well.
Even five minutes a day will improve your thinking. I've come across new ideas and learnt to improve existing ways to become more motivated, confident and happier.
Brilliant. It feels fresh and encouraging. So many interesting pieces of information that are just enough to absorb and apply. So happy I found this.
I have only been using it for a few days now, but I have found answers to questions I had never consciously formulated, or to problems I face everyday at work or at home. I wish I had found this earlier, highly recommended!
Read & Learn
Access to 200,000+ ideas
Access to the mobile app
Unlimited idea saving & library
Unlimited listening to ideas
Downloading & offline access
Claim Your Limited Offer
Get Deepstash Pro
Supercharge your mind with one idea per day
Enter your email and spend 1 minute every day to learn something new.
I agree to receive email updates