Water: The Substance of Life
Why Water Is Essential for Health and Wellbeing
Water is essential for every cell, tissue and organ in the human body. Whether you're exercising, recovering after a run or simply enjoying a daily walk, staying properly hydrated supports countless bodily functions that keep your body functioning at its best.
Water is often described as the substance of life – and for good reason. It is involved in everything from transporting nutrients and regulating body temperature to supporting normal metabolism and helping remove waste products from the body.
Every second of every day, water is working behind the scenes to keep your body functioning as it should.
Let's take a closer look at why water is so important and why maintaining good hydration should be part of everyone's daily routine.
Why Water Is Essential for Life
Water is unique. It is the only naturally occurring substance found in all three states: liquid, solid (ice) and gas (water vapour).
Covering over 70% of the Earth's surface, water is fundamental to every known form of life. Without it, life on Earth simply would not exist.
In humans, water acts as both a solvent and a delivery system within the body. It dissolves vitamins and nutrients from the food we eat, helping deliver them throughout the body. Water also plays an important role in regulating body temperature and supporting cardiovascular health, supporting metabolism and helping remove waste products.
How Much Water Is in the Human Body?
The average adult body is made up of approximately 65% water, although this varies depending on factors such as age, body composition and fitness level. Water content is typically highest in infants and generally lower in people with a higher proportion of body fat, as lean tissue contains considerably more water than fatty tissue.
To put this into perspective:
- The brain is composed of approximately 75% water
- The lungs are nearly 90% water
- Bones contain around 25% water
- Muscles are approximately 75% water
- Blood is made up of around 83% water
Water is essential for every organ, tissue and cell in the human body.
Why Staying Hydrated Matters
Every day our bodies naturally lose water through breathing, perspiration, urine, digestion and other normal physiological processes.
To maintain healthy hydration, this water needs to be replaced. On average, most adults require around 2–2.5 litres of water each day, with some coming from the food we eat and the remainder from fluids we drink.
Although this may sound like a large amount, our bodies rely on a constant supply of water to function efficiently. We can survive for many days without food, but only a few days without water.
Maintaining good hydration is one of the simplest yet most important ways to support your overall health and wellbeing.
Water, Cells and Electrolytes
Every part of your body is made up of cells, and each of these cells contains a water-based solution made up of proteins, amino acids, fats, minerals and trace elements.
Many of the reactions that keep us alive occur within this water-rich environment. These processes rely on electrolytes such as sodium, potassium, calcium, magnesium and chloride, which help regulate fluid balance, nerve signalling and muscle function.
When the body is properly hydrated, these electrolytes can move efficiently in and out of cells, helping maintain normal cellular function.
Without sufficient water, these processes become less efficient, making hydration an essential part of supporting healthy cells and maintaining the body's natural balance.
The message is simple: keeping your body well hydrated helps support the countless cellular processes that enable it to function effectively every day.
Healthy cells rely on water and electrolytes to function efficiently.
Can Infrared Clothing Support Recovery?
Good hydration forms one of the foundations of health, exercise performance and recovery. Alongside healthy nutrition and regular physical activity, the clothing you wear may also help support comfort during training.
ABSOLUTE360® garments are engineered using infrared-responsive fibres designed to help support natural thermoregulation, comfort and recovery. By reflecting naturally occurring infrared energy back towards the body, the fabric is designed to complement your body's natural processes during activity and afterwards.
Hydration remains one of the most important habits for maintaining good health, while infrared-responsive clothing can form part of a broader approach to supporting wellbeing and recovery.
If you'd like to learn more about the technology behind our garments, visit our Infrared Technology page.
Final Thoughts
Water is often taken for granted, yet it is involved in almost every process that keeps us alive.
From transporting nutrients and regulating body temperature to supporting healthy cells and physical performance, staying hydrated is one of the simplest ways to look after your body.
Whether you're training for your next event, recovering after exercise or simply trying to lead a healthier lifestyle, making hydration a daily habit is a small change that can make a meaningful difference over time.
References
NHS — Water, drinks and hydration
https://www.nhs.uk/live-well/eat-well/food-guidelines-and-food-labels/water-drinks-nutrition/
British Nutrition Foundation — Healthy Hydration
https://www.nutrition.org.uk/nutritional-information/hydration/
USGS — Water in the Human Body
https://www.usgs.gov/water-science-school/science/water-you-water-and-human-body
