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Health Benefits of Staying Hydrated

Know the health benefits of drinking water, why is it important, signs of dehydration, how much water you should drink and tips to stay hydrated.

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Written by Dr. J T Hema Pratima

Reviewed by Dr. D Bhanu Prakash MBBS, AFIH, Advanced certificate in critical care medicine, Fellowship in critical care medicine

Last updated on 13th Jan, 2026

Introduction

Staying hydrated is one of the simplest yet most powerful ways to maintain good health. Water makes up about 60% of our body weight and plays a crucial role in nearly every bodily function. From digestion to brain function, hydration is key to keeping your body running smoothly.

In this article, we’ll explore why staying hydrated is so important, the signs of dehydration, and practical tips to ensure you drink enough water every day.

Why Is Hydration Important?

Water is essential for:

1. Regulating Body Temperature – Sweating helps cool you down, especially during exercise or hot weather.

2. Supporting Digestion – Water helps break down food and prevents constipation.

3. Flushing Out Toxins – Kidneys need water to filter waste through urine.

4. Lubricating Joints – Hydration keeps joints flexible and reduces stiffness.

5. Boosting Brain Function – Even mild dehydration can cause headaches, fatigue, and poor concentration.

6. Maintaining Healthy Skin – Proper hydration keeps skin moisturised and reduces dryness.

Consult a General Practitioner for Personalised Advice

Dr. Mainak Baksi, General Practitioner

Dr. Mainak Baksi

General Practitioner

13 Years • MBBS , MD (MPH)

Howrah

Mainak Baksi Clinic, Howrah

recommendation

82%

(50+ Patients)

600

750

Dr. Rajib Ghose, General Physician/ Internal Medicine Specialist

Dr. Rajib Ghose

General Physician/ Internal Medicine Specialist

25 Years • MBBS

East Midnapore

VIVEKANANDA SEBA SADAN, East Midnapore

950

850

Dr. Anamika Krishnan, General Practitioner

Dr. Anamika Krishnan

General Practitioner

11 Years • MBBS, DNB (Paediatrics) ,Diploma in child Health

Bengaluru

UMC (United Medical Center), Bengaluru

625

700

Signs You’re Not Drinking Enough Water

Your body gives clear signals when it needs more fluids. Look out for:

  • Dark yellow urine (light yellow or clear is ideal)

  • Dry mouth, lips, or skin

  • Headaches or dizziness

  • Fatigue and low energy

  • Muscle cramps

  • Constipation

If you experience these symptoms often, you may need to increase your water intake.

How Much Water Should You Drink?

The common recommendation is 8 glasses (about 2 litres) per day, but individual needs vary based on:

  • Activity level (more if you exercise)

  • Climate (hot weather increases water loss)

  • Health conditions (pregnancy, breastfeeding, or illnesses may require more fluids.

A simple rule: Drink when you’re thirsty, and sip water throughout the day.

Tips to Stay Hydrated

Tips to stay hydrated include:

1. Carry a Water Bottle – Keep one handy to remind yourself to drink.

2. Eat Water-Rich Foods – Cucumbers, watermelon, oranges, and soups help with hydration.

3. Set Reminders – Use phone alerts or apps to track your intake.

4. Flavour Your Water – Add lemon, mint, or berries for a refreshing twist.

5. Drink Before Meals – A glass of water before eating aids digestion.

6. Monitor Urine Colour – Aim for pale yellow (a sign of good hydration).

When to Seek Medical Help?

Severe dehydration can be dangerous. Seek medical attention if you experience:

  • Extreme thirst or no urination for hours

  • Confusion or fainting

  • Rapid heartbeat or breathing

  • Sunken eyes or dry skin that doesn’t bounce back when pinched

Final Thoughts

Staying hydrated is a small habit with big health benefits like regulating body temperature, flushing out toxins and keeping the body healthy overall. By drinking enough water daily, you can boost energy, improve digestion, and keep your body functioning at its best.

Consult a General Practitioner for Personalised Advice

Dr. Mainak Baksi, General Practitioner

Dr. Mainak Baksi

General Practitioner

13 Years • MBBS , MD (MPH)

Howrah

Mainak Baksi Clinic, Howrah

recommendation

82%

(50+ Patients)

600

750

Dr. Rajib Ghose, General Physician/ Internal Medicine Specialist

Dr. Rajib Ghose

General Physician/ Internal Medicine Specialist

25 Years • MBBS

East Midnapore

VIVEKANANDA SEBA SADAN, East Midnapore

950

850

Dr. Anamika Krishnan, General Practitioner

Dr. Anamika Krishnan

General Practitioner

11 Years • MBBS, DNB (Paediatrics) ,Diploma in child Health

Bengaluru

UMC (United Medical Center), Bengaluru

625

700

Consult a General Practitioner for Personalised Advice

Dr. Mainak Baksi, General Practitioner

Dr. Mainak Baksi

General Practitioner

13 Years • MBBS , MD (MPH)

Howrah

Mainak Baksi Clinic, Howrah

recommendation

82%

(50+ Patients)

600

750

Dr. Rajib Ghose, General Physician/ Internal Medicine Specialist

Dr. Rajib Ghose

General Physician/ Internal Medicine Specialist

25 Years • MBBS

East Midnapore

VIVEKANANDA SEBA SADAN, East Midnapore

950

850

Dr. Anamika Krishnan, General Practitioner

Dr. Anamika Krishnan

General Practitioner

11 Years • MBBS, DNB (Paediatrics) ,Diploma in child Health

Bengaluru

UMC (United Medical Center), Bengaluru

625

700

Dr. Moumita Roy, General Physician/ Internal Medicine Specialist

Dr. Moumita Roy

General Physician/ Internal Medicine Specialist

8 Years • MBBS , MD (Anesthesiology)

Kolkata

VDC Clinic, Kolkata

800

Dr. Arif Ahmed, General Physician/ Internal Medicine Specialist

Dr. Arif Ahmed

General Physician/ Internal Medicine Specialist

9 Years • MBBS, MD (Genl. Med.)

Kolkata

MCR SUPER SPECIALITY POLY CLINIC & PATHOLOGY, Kolkata

850

850

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