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Sleep Deprivation

Sleep deprivation is defined as insufficient sleep or low quality of sleep. Continuous lack of sleep can affect your overall physical and mental health.

Sleep can make all the difference between a good day and a bad one. A good night’s sleep powers your mind and restores your body, so you are ready to tackle the day. How much sleep do you really need? The National Sleep Foundation guidelines advise that healthy adults need between 7 and 9 hours of sleep per night. People over 65 should also get 7 to 8 hours per night.

Despite its essential importance to health, many people choose to sacrifice some zzzs for other reasons such as work, school or entertainment. Losing sleep can wreak havoc on your body. Take a look at how sleep deprivation affect your overall physical and mental health.

Weight gain

Your metabolism will slow down if you are sleep deprived. Changes of sleep will also affect your hormone level (ghrelin and leptin), causing you to eat more. Hence, your fat storage will increase, causing you to put on weight.

Poor immunity

When you are sleeping, your body produce protective substances (antibodies) to combat foreign invaders (bacteria and viruses). Lack of sleep leaves you more prone to infections. It will also take you longer to recover from illnesses.


Slower reaction time

Your brain will be exhausted if you do not get sufficient sleep. The signals transferred in your central nervous system will be delayed, decreasing your coordination. You will find yourself to react slower and more difficult to concentrate or learn new things.

Anxiety and depression

It is a two-way connection between sleep and mental state. Anxiety and depression will cause sleeping problems. The more you experience sleep deprivation, the higher chance for you to develop depression.


Mood swings

Sleep deprivation can increase your negative moods (anger, sadness, frustration, etc.) and decrease your positive moods. You will feel more impatient, moody, emotional and quick-tempered. Once you sleep well, your mood often returns to normal.


Start improving your sleep quality today! Get a restful sleep and be ready to conquer each new day.

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