The Unexpected Consequences of Too Little or Too Much Sleep

1. Weight Gain

Research has shown that those who sleep less than 5 hours a night tend to gain weight more quickly and are more likely to become obese. Similarly, those who sleep more than 9 hours are also at risk for weight gain.

2. Dark Circles Under the Eyes

Although lack of sleep is often blamed for dark circles and puffiness under the eyes, sleeping more than 9 to 10 hours a night can have a similar effect.

3. Increased Risk of Cardiovascular Diseases

Although scientists have not yet been able to pinpoint the exact reason behind the link between excessive sleep and cardiovascular diseases, studies have shown that individuals who sleep more than 9 to 10 hours a night have a higher risk of developing heart disease.

4. Difficulty Concentrating

The negative effects of sleep deprivation on cognitive abilities are well-documented. However, it is interesting to note that too much sleep can also harm quick decision-making skills, problem-solving abilities, and disrupt memory performance.

5. Dry Skin and Wrinkles

Research has shown that our sleep patterns affect the condition of our skin. Sleep deprivation can cause a loss of body moisture, which leads to dry and dull skin. Too much sleep can have similar effects. This is because spending more than 8 hours sleeping disrupts the body’s ability to restore its water balance, which can lead to premature wrinkles and sagging skin.

6. Weakened Immune System

Excessive sleep can have a detrimental effect on the immune system, including increasing inflammation in the body. This makes you more vulnerable to illnesses.

7. Acne

Chronic sleep deprivation can cause acne. Lack of sleep increases cortisol levels, the stress hormone, in the body. This can lead to an overproduction of oil by the skin’s sebaceous glands, which causes clogged pores and acne.

8. Depression

Excessive sleep can increase the risk of depression. Although lack of sleep is commonly linked to depression, studies show that oversleeping is prevalent among those who are depressed, and this can worsen the symptoms of depression.

9. Headaches

Too much sleep can disrupt serotonin production, which can lead to headaches. Additionally, excessive sleep can cause back pain or worsen existing back problems.

10. Weakened Judgment Ability

Research has shown that sleep deprivation can impair our ability to accurately interpret the facial expressions of others. When we are tired, we may misinterpret a neutral facial expression as aggression or misunderstand other facial cues, leading to incorrect conclusions.