The Science of Sleep: What Happens When You Sleep
In Lifestyle | 18 Sep 2023

The Science of Sleep: What Happens When You Sleep

The Science of Sleep: What Happens When You Sleep

the science of sleep

Ever wondered why we sleep? Sleep is an inevitable part of our lifestyle but only a few people do. Sleep is something many of us find hard to achieve sometimes. In fact, around a third of adults struggle with sleep at least once a week. Learning about the science of sleep can give us some ideas to try and make sleep come a little easier.

Why do we need Sleep?

There are lots of different theories when it comes to the ‘WHY’ of Sleep. A combination of these theories is the most likely explanation. Exploring what happens when we’re sleep-deprived is a good way of identifying the ‘Why’ of Sleep. Unfortunately, long-term sleep deprivation is a risk factor for obesity, diabetes, high blood pressure, heart disease, strokes, mental illness, poor memory, focus, and concentration, clumsiness, and a weakened immune system.

Cognitively, we could notice that our reactions lag and our ideas get disorganized after a terrible sleep. Thinking, paying attention, and maintaining our mood is challenging. The fact that regions of our brain stay dormant while we are awake when we are sleep deprived is one of the causes of these challenges.

What happens to our mind when we sleep?

When we’re asleep, our brain’s waste-clearance system clears out waste from our central nervous system and toxic by-products that have built up in our brain over the day. This is important because it helps our brain to work well when we’re awake. Our nerve cells exchange information and organize themselves. This encourages normal brain activity.

Our brain can transfer knowledge from working memory, also known as short-term memory to our longer-term memory while we sleep. This only applies to information that it deems necessary. Unneeded details are forgotten. A crucial component of our memory and capacity to learn new information is this process. It is simpler for the brain to learn, remember, solve problems, be creative, make decisions, focus, and concentrate when it is well-rested.

What happens to our body when we sleep?

Our bodies are active while we are sleeping. It produces new tissue, regenerates muscles, replenishes energy, and creates proteins. Lack of sleep may lead to weight gain. This is due to a drop in our “hunger hormones” while we are sleeping. These hormones can become imbalanced if we don’t get enough sleep. We may unknowingly overeat as a result of our elevated levels of hunger and suppression of our feelings.

A hormone called insulin regulates the amount of glucose in our cells. Healthy cells readily absorb glucose (sugar). We use less glucose while we are sleeping. Maintaining the health of our cells, enables our body to regulate the total levels of blood glucose, so preventing insulin resistance.

“Cytokines” are proteins that our bodies produce when we’re sleeping. These proteins assist our body fight illness by producing antibodies and immune cells. This is one of the reasons we require more sleep when we are anxious or ill.

Sleep is important for our heart health, too. Weight gain and insulin resistance are risk factors for heart disease. As is high blood pressure – which is made worse by lack of sleep, because our blood pressure reduces when we’re asleep. Cortisol is a hormone that’s released when we’re awake. High levels of cortisol are a further risk factor for heart disease. Overall, sleep plays a vital part in maintaining a healthy heart.

Stages of Sleep

We go through a four-stage sleep cycle each night. A full cycle lasts 90-120 minutes. We repeat it multiple times a night. The first three stages class as ‘Non-Rapid Eye Movement (NREM) sleep, while the fourth is Rapid Eye Movement (REM) sleep.

Stage 1: This NREM stage lasts for several minutes. Our sleep is light, muscles begin to relax, heart rate and breathing start to slow, eye movements reduce and brain waves slow down.

Stage 2: This NREM stage is, overall, the longest stage. We fall into a deeper sleep, our heart rate and breathing slow, muscles relax further, temperature drops, and eye movements stop. There are moments of high-frequency electrical activity within our brain, but other than that our brain waves continue to slow.

Stage 3: The final NREM stage is initially longer than stage 2, but decreases in length as the night goes on. Our heart rate, breathing, and brain wave activity slow to their lowest level, and our muscles become as relaxed as they can be. It’s also a restorative stage. Our body repairs cells, tissues, and muscles, and restores our energy levels.

Stage 4: This is our only REM stage. It gets longer as the night goes on. Our heart rate, blood pressure, and breathing all begin to increase again. Though our eyes stay closed, they flit back and forth rapidly. We might dream, though our arms and legs will remain paralyzed so we can’t act on our dreams. During this stage, our memories are consolidated. Important things move from our working (short-term) memory to our longer-term memory.

Sleep and Mood

Sleep and mood are intertwined. We are more likely to lose our temper when we are exhausted. We have trouble thinking, which makes it challenging to apply good coping mechanisms for life’s ups and downs.

Our brain’s emotional regulation centres become more active while we sleep, which makes it easier for us to handle and process challenging circumstances. We can handle challenging situations better when we are well-rested.

Poor sleep can contribute to the onset progression of poor mental health. It can also be a relapse trigger. Our mental health can affect our sleep, too. During wonky mental health times, we often find it harder to sleep or sleep excessively. Coping with an unwell brain is a tiring business, and we often need more sleep during particularly anxious or ‘low’ times.

How to Sleep Well?

Are you fed up with spending wakeful hours? Get done with this; let us tell you the art of sleeping peacefully. Here are some tips:

1. Good Sleeping Posture

A good sleeping posture is essential to enjoy your sleep and heal throughout the night. While you sleep, your muscles and ligaments relax and heal. If you sleep in the correct posture, it protects your back and allows it to heal well while making you feel relaxed and doze off soon. Many sleep experts recommend to try an orthopaedic mattress for back pain. For better sleep at night, buy orthopedic mattress online.

2. Right Mattress

When you start sleeping in the proper posture, it shows positive changes in your body. However, it won’t be fruitful if you rest your body on a poor surface. If you understand your sleeping needs, it helps you wake up pain-free and well-rested. If you’re looking for the best mattress, buy mattress online that provides you enough support and comfort for better sleep.

An age-old and saggy mattress gives uneven comfort to your body, so choose it wisely. A good mattress is what caters to your individual sleeping needs. If you don’t know the best mattress for you, consult your doctor because that would be good to aid your back pain. Ensure you buy king size mattress online that supports the natural curve of your spine and feels comfortable at night with enough space.

3. Right Pillow

Likewise, your body needs the proper comfort, and your head and neck also deserve the right pillow to keep them in the proper alignment. If you love sleeping on a high pillow, it can cause muscle strain on your neck and shoulders, while a low one won’t offer the proper comfort and a relaxed posture. Buy pillow online and give a comfy treat to your head and neck for even more comfortable sleep.

Usually, people are advised to sleep without a pillow for maximum comfort. You can get a medium-firm pillow to keep your neck aligned with the chest and lower back. Your pillow must promote all your sleeping positions with supreme comfort. You can consider switching it every couple of years and get a good night’s slumber.

Leave a comment

Please note, comments need to be approved before they are published.

People also Loves to Read this

Why Gomukhasana is a Must-Do Pose for Office Workers and Desk Jockeys

Why Gomukhasana is a Must-Do Pose for Office Workers and Desk Jockeys

From the outside, a desk job looks like a dream job. You spend your day sitting on...

Read More
Health Benefits of Paschimottanasana: From Flexibility to Stress Relief

Health Benefits of Paschimottanasana: From Flexibility to Stress Relief

Stress has become the norm today. Maybe it’s because of the digital era we live in or...

Read More
10 Exercises to Do While Sitting at a Desk in 2025

10 Exercises to Do While Sitting at a Desk in 2025

I have a desk, but I don't want to sit at it all day. - Richard Branson...

Read More
5 Benefits Of Dhanurasana For Male & Female

5 Benefits Of Dhanurasana For Male & Female

In today's mechanical era, where time has become sparse, yoga can offer that much-needed respite to give...

Read More
5 Signs You Need a Sleep Tracker

5 Signs You Need a Sleep Tracker

How many cups of coffee do you down as soon as you wake up? Or maybe tossing...

Read More
The Future of Sleep Trackers: Trends to Watch in Sleep Technology

The Future of Sleep Trackers: Trends to Watch in Sleep Technology

Once upon a time, tracking your sleep meant roughly calculating the hours spent in bed from when...

Read More
Top 10 New Year Gift Ideas For Married Couples

Top 10 New Year Gift Ideas For Married Couples

As the wedding season is on, this New Year will be filled with moments to enjoy love,...

Read More
Common Causes of Insomnia: Stress, Anxiety, and Other Triggers

Common Causes of Insomnia: Stress, Anxiety, and Other Triggers

Today, about 30% of the Indian population has insomnia. Now, a good night's rest is not only...

Read More
What Is A Normal Sleeping Heart Rate By Age?

What Is A Normal Sleeping Heart Rate By Age?

Your heart rate fluctuates during the day based on what you are doing. In fact, it is...

Read More
Top 10 Secret Santa Gift Ideas 2024

Top 10 Secret Santa Gift Ideas 2024

The Christmas season is finally here, and with it comes the eagerly anticipated Secret Santa! Whether at...

Read More
What Is A White Noise Process?

What Is A White Noise Process?

Does White Noise Help You Sleep Better? Does the steady hum of the air conditioner lull you...

Read More
Circadian Rhythm - Effects, Treatments & Symptoms

Circadian Rhythm - Effects, Treatments & Symptoms

Are you someone who craves a nap in the afternoon? Or perhaps you are a night owl...

Read More
How to Choose the Right Comforter for Your Bed: Size, Material, and Style

How to Choose the Right Comforter for Your Bed: Size, Material, and Style

Imagine going to bed. You have a fluffy mattress and pillows providing the necessary comfort. But what...

Read More
Maladaptive Daydreaming - Tests, Treatment & Symptoms

Maladaptive Daydreaming - Tests, Treatment & Symptoms

Losing yourself in an exciting daydream is quite common. Infact, our minds have a tendency to wander...

Read More
Beautiful Indian Homes Design Ideas 2025

Beautiful Indian Homes Design Ideas 2025

Indian architecture goes forth to depict the awe-inspiring complexity of history, tradition, and modernity across the diversity...

Read More
The SmartGRID Effect: A Look at Celebrity Comfort Secrets

The SmartGRID Effect: A Look at Celebrity Comfort Secrets

Peaceful sleep can easily become a luxury in the fast-paced world of entertainment, where demanding schedules and...

Read More
10 Last Minute Tips That Will Elevate Your Diwali Decor

10 Last Minute Tips That Will Elevate Your Diwali Decor

Lights, sweets, fireworks, action! Diwali aka the festival of lights is just around the corner. A time...

Read More
Coping with Fatigue and Sleepiness in Cancer Patients

Coping with Fatigue and Sleepiness in Cancer Patients

Fatigue and sleepiness are common side effects that cancer patients face during treatment. Infact, research suggests that...

Read More
How to Arrange Your Bedroom

How to Arrange Your Bedroom

If you are here, it means your bedroom is due a makeover. Our bedrooms are nothing less...

Read More
Upgrade Your Sleep This Diwali: Choosing the Best Mattress for Your Home

Upgrade Your Sleep This Diwali: Choosing the Best Mattress for Your Home

Diwali 2024 brings with it the promise of new beginnings, so why not take this opportunity to...

Read More
How to Improve Sleep Time While Working Remotely?

How to Improve Sleep Time While Working Remotely?

Are you wondering how can I increase my deep sleep hours or how can I increase my...

Read More
Minimalist Bedroom Design and Decor Ideas

Minimalist Bedroom Design and Decor Ideas

Did you know? The concept of minimalism started in the early 1960s! Now, in 2024, it is...

Read More
10 Health Benefits Of Bamboo Sheets

10 Health Benefits Of Bamboo Sheets

How many times have you really thought about your sheets when it comes to your sleep? While...

Read More
10 Hacks to Help Your Baby Sleep Through the Night

10 Hacks to Help Your Baby Sleep Through the Night

Are you struggling to help your baby sleep through the night? You are in the right place!...

Read More
The Science Behind AI Mattresses

The Science Behind AI Mattresses

AI is not just limited to GPT or your smartphone's virtual assistant. Infact, mattresses are also getting...

Read More
Bhramari Pranayama (Bee Breath) For Better Sleep

Bhramari Pranayama (Bee Breath) For Better Sleep

Bhramari Pranayama or Bee Breath is an ancient practice that dates back to almost the 15th century....

Read More
Viparita Karani Yoga Pose: Your Ultimate Guide to Relaxation and Rejuvenation

Viparita Karani Yoga Pose: Your Ultimate Guide to Relaxation and Rejuvenation

Viparita Karani is a yoga pose that's always by your side. Whether you are stressed after a...

Read More
Best Recliner Sofa Brand in India

Best Recliner Sofa Brand in India

That one furniture item that takes relaxation and comfort to a whole new level, has to be...

Read More
Gift Him on This Rakhi: Raksha Bandhan Gift For Brother

Gift Him on This Rakhi: Raksha Bandhan Gift For Brother

Raksha Bandhan is right around the corner! So, this year, make your Rakhi truly special by choosing...

Read More
What Is Hypersomnolence Disorder And How To Recover From It?

What Is Hypersomnolence Disorder And How To Recover From It?

Sleep is vital for our overall health. Yet, 55% of Indians aren't getting enough. Infact, we are...

Read More
Understanding the Sleep Pattern of Your Favorite Celebrities

Understanding the Sleep Pattern of Your Favorite Celebrities

We have all heard the saying, 'Early to bed, early to rise, makes a man healthy, wealthy,...

Read More
Rakhi Gift Ideas for Sisters Who Work Night Shifts

Rakhi Gift Ideas for Sisters Who Work Night Shifts

Rakhi or Raksha Bandhan is just around the corner! As a brother, it's time to get creative...

Read More
Decoding Athletes’ Sleep: The Paris Olympics 2024

Decoding Athletes’ Sleep: The Paris Olympics 2024

Paris Olympics 2024 has been the talk of the town, not just for being the biggest sporting...

Read More
30 Minutes Kapalbhati Benefits and Precautions

30 Minutes Kapalbhati Benefits and Precautions

Kapalbhati is an ancient yogic breathing technique that can declutter the mind and help you enjoy a...

Read More
Supta Baddha Konasana: The Ultimate Yoga Asana for Sound Sleep

Supta Baddha Konasana: The Ultimate Yoga Asana for Sound Sleep

Supta Baddha Konasana can be the perfect yoga asana for you if you struggle to fall asleep....

Read More
Ardha Matsyendrasana- How It Helps You Achieve Sound Sleep

Ardha Matsyendrasana- How It Helps You Achieve Sound Sleep

Ardha Matsyendrasana, or the 'Lord of Fishes' Pose, is one of the 12 foundational asanas of Hatha...

Read More
Bhujangasana (Cobra Pose): Benefits For Sleep and How To Do It

Bhujangasana (Cobra Pose): Benefits For Sleep and How To Do It

Bhujangasana (Cobra Pose) can be an ideal solution if you find it difficult to fall asleep each...

Read More
Benefits of Exercise and Healthy Eating For Sleep

Benefits of Exercise and Healthy Eating For Sleep

A well-balanced meal, a good night's rest, and regular physical activity are imperative for your overall well-being....

Read More
How to Make the Most out of Prime Day Sale

How to Make the Most out of Prime Day Sale

The Prime Day Sale is right around the corner, scheduled for the 20th and 21st of July...

Read More
Healthy Protein Breakfast Ideas For Better Sleep

Healthy Protein Breakfast Ideas For Better Sleep

Did you know that what you eat for your breakfast actually impacts your sleep? Now, if you...

Read More
Ombrophobia: The Fear of Rain

Ombrophobia: The Fear of Rain

Imagine, while most people enjoy the first rain showers of the season, some individuals may experience chills...

Read More
Somniphobia: Causes, Symptoms & Diagnosis

Somniphobia: Causes, Symptoms & Diagnosis

Understanding of Somniphobia After a long day, finding restful sleep is a priority for most people. However,...

Read More
11+ Cozy Bedtime Rituals to Enhance Your Rainy Night

11+ Cozy Bedtime Rituals to Enhance Your Rainy Night

The pitter-patter of the rain at night is almost like music lulling us to fall asleep. It's...

Read More
Rainy Night Reading List: Books to Drift off Peacefully

Rainy Night Reading List: Books to Drift off Peacefully

If you are a voracious reader, you already know how calming books can be. But if you...

Read More
The Importance Of A Good Kids Mattress For Healthy Growth

The Importance Of A Good Kids Mattress For Healthy Growth

The mattress is important regardless of your age. Do you agree? Imagine trying to sleep on a...

Read More
What Makes a Smartgrid Mattress Different from Traditional Mattresses?

What Makes a Smartgrid Mattress Different from Traditional Mattresses?

A wise man once said that if you want good sleep, you have to have a good...

Read More
Improving Quality of Life with a Senior Citizen Mattress

Improving Quality of Life with a Senior Citizen Mattress

Did you know? For most seniors, slumber feels like a distant friend. It is no longer as...

Read More
Seven Ways You Are Hurting Your Sleep This Summer

Seven Ways You Are Hurting Your Sleep This Summer

Summer is singing with joy, and the beaches are inviting you with dancing waves. - Debasish Mridha...

Read More
Easy Ways To Prep Up Your Home For Gudi Padwa 2024

Easy Ways To Prep Up Your Home For Gudi Padwa 2024

According to the Hindu lunisolar calendar, Gudi Padwa signifies the beginning of the New Year. It is...

Read More
11 Ways How To Maintain Your House If You Are A Pet Parent

11 Ways How To Maintain Your House If You Are A Pet Parent

Whether it's on your phone or the kitchen appliances, do you always find pet hair? Or maybe...

Read More