How Drinking Water is Good For Mental Health?

You are not hungry, you are thirsty. Drink water and feel the difference. Drinking is important for the brain because our brain is primarily made up of water and any reduction in the supply is not good for mental health.


Drinking water Good For Mental Health
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Water is the essential component of our body since it constitutes around 72% of our body  based on age, weight, and size of a person. Drinking enough water everyday has amazing health benefits.

Let’s dig deeper the first thing is dehydration when we are not drinking enough water and how it affects the brain.

What is dehydration?

Dehydration occurs when we lose more water and the lost water is not replaced. 

How does dehydration impact the brain?

The human brain is made up of about 75 percent water, the primary way that dehydration affects the brain and changes how it functions is by reducing the flow of water everywhere in the body.

This lowers blood flow in key organs, which means less oxygen travels to all parts of the body, including the brain.

Research shows dehydration is linked to depression and anxiety because mental health is driven primarily by the brain’s activity. Mild dehydration can quickly affect mood.

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The most common theory is that it’s one of the human body’s signaling systems that something is not right and should be dealt with.

As dehydration increases, cognitive function reduces, leading to confusion and disorientation. Severe dehydration can lead to unconsciousness, and coma and could cause death.

 It is important to think of water as a nutrient your brain needs.

Dehydration and mental health?

Dehydration affects quickly and impairs your senses and thinking process. If you combine this with mood issues it could actually lead to more dangerous situations.

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Drinking water regularly throughout the day is an easy, effective method to take care of mental health. 

  • Start with a glass of water first thing in the morning.
  • Drink two or three glasses between meals.
  • Carrying a water bottle is the best practice everyone should follow.

Headaches and changes in mood could happen quickly to those who are dehydrated and to those who are prone to mood changes and are quite sensitive to dehydration. Drinking adequate water keeps the brain sound and allows you to think clearly.

Staying hydrated by drinking enough water is a fundamental aspect of good physical, emotional, and mental health. 

How dehydration contributes to depression

Depression is a complex mental illness and it would be simplistic to say that dehydration is a direct cause of depression.

Dehydration and depression are causally connected; in fact, chronic dehydration could result in symptoms of depression.

Many of the brain’s functions require its optimal performance however dehydration shuts the functioning of the brain by reducing oxygen and blood flow.

The resulting disorders that result from this chronic dehydration can lead to depression.

Dehydration impedes your brain’s serotonin production

Depression is frequently found in people with reduced levels of serotonin level, which is a critical neurotransmitter that heavily affects mood.

Amino acid tryptophan creates serotonin, but sufficient water is needed to release it. 

Stress is one of the most important contributors to depression, along with a sense of powerlessness and inability to cope with stressors.

When under chronic stress, adrenal glands produce extra cortisol, then your adrenal glands are exhausted, resulting in reduced electrolyte levels.

Drinking sufficient water can help cope with the negative psychological and physiological influence of stress.

Dehydration and anxiety

Not drinking adequate water puts you at risk for increased anxiety symptoms, and possibly causes higher anxiety levels later.

Dehydration causes stress, and when the body is stressed, the body experiences depression and anxiety as a result.

Even if you never experienced anxiety, drinking adequate water can promote feelings of relaxation.

Dehydration and panic attacks

Panic attacks usually have physical triggers, and one important trigger is dehydration.  When dehydrated, you expose yourself to many of the symptoms that trigger panic attacks, such as:

  • Muscle fatigue or weakness
  • Increased resting heart rate
  • Feeling lightheaded
  • Head Pain
dehydration symptoms
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Dehydration symptoms

While sufficient hydration may not stop the panic attacks, their frequency is reduced, or some important triggers are removed.

You should increase your fluid intake accordingly in the following situations:

  • Intense workout sessions.
  • Illnesses with fever or diarrhea.
  • Hot or humid environment.
  • Pregnant/breastfeeding women.
  • Chronic health issues.
  • Dieting.

 If urine is a dark yellow color consistently, that means you’re very dehydrated. Drink some water and thus optimally improve the brain’s function.


Keeping yourself adequately hydrated is not a cure for mental issues, however, it is good For mental health.  Seeking the assistance of a certified mental health professional is always a smart choice.

By John Gurung

A former software developer who is now a blogging enthusiast. A true digital nomad.

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