Nothing is more vital to your health than pure water. It comprises 60% of your body weight which is equivalent to 11 gallons or 92 pounds inside of 155 lb person, making it your body's principle component. Every cell, organ and
organ system depends on water and is essential to good health.
So how much water should you drink per day? Let me start by saying, one size does NOT fit all. Your size, health, environment and activity level affect your fluid intake requirements. However, the Institute of Medicine has provided general guidelines that say the average adult male should drink 13 cups (3 liters) and the adult woman 9 cups (2 liters) per day. Once you understand your body's need for water, then you can better estimate how much to drink each day.
Proper hydration sharpens the memory, stabilizes moods, and maintains intact motivation. Water flushes toxins out of the blood to be excreted by the kidneys. It provides elasticity to the skin, a moist environment for upper respiratory tissues and a built-in cooling system via perspiration.
So what about the drink 8 (8oz) glasses of water per day rule? With multiple factors to consider we should now think of it as drink AT LEAST 8 glasses of water per day. If you are someone who engages in regular moderate exercise you will need to increase your daily intake by approximately 1.5-2.5 cups per day. Hot and humid weather also results in the need to increase fluid intake. Likewise, when we are acutely ill with the loss of body fluids secondary to fever, vomiting or diarrhea we should drink more water. On the other hand, certain medical conditions such as heart failure and impaired kidney function require a restriction of fluid intake.
Your fluid intake is probably adequate if you drink enough fluids that you don't feel thirsty and you produce greater than 6 cups of colorless or light yellow urine per day. Remember that a lack of water can lead to dehydration that results in improper functioning of the body. Replenish your water supply daily.
In the scripture we are told of another water supply. The Living Water. In John 4:14 Jesus lovingly speaks to a woman at a well, "But no one who drinks the water that I give will ever be thirsty again. The water that I give will become in that person a flowing fountain that gives eternal life."