Nutrition: Have you had your 8 glasses of water today?
8 glasses. Growing up I was always told that I needed to drink at least 8 glasses of water per day. But why? Why is water so important that I need to drink 8 glasses of it? And why is 8 the lucky number?
Water constitutes about 60% of the adult human body! That right there should let you know just how important water is, but let’s continue.
The Functions of water in the body
- Water helps us regulate our body temperature. That’s kind of important!
- Water moistens tissues such as those in the mouth, nose, and eyes
- Water lubricates joints
- Water carries nutrients and oxygen to the cells.
Those are just a few of the major functions of water in the human body. Not to mention the number one function of water – TO KEEP US ALIVE! Humans can last only a few days without consuming water.
You may be thinking to yourself… “Sources of water? It’s water…duhh.” You are correct. But there are many more ways to consume water than just water.
- Most fruits and vegetables can contain up to 90% water.
- Meats and cheeses can contain at least 50% water.
- Water can also be generated/created by the body during the metabolism of food.
A majority of the foods that we consume in a regular diet contain some water. Some foods have higher amounts than others.
So how then did they come up with choosing 8 glasses of water? An adult should consume approximately 1.0 – 1.5 ml of water for every calorie they burn in a day. After doing all of the conversions, it comes out to approximately ½ cup of water for every 100 calories burned in a day. I guess “they” assume that the average human burns 1,600 calories a day.
You want to make sure you replace the fluids you lose throughout the day. If you do not replace the fluids lost throughout the day, dehydration sets in. Dehydrations can have symptoms such as: thirst, loss of appetite, dry mouth, impatience, headaches, increased respiratory rate, loss of balance, delirium, and in some instances death.
Now that you know a little bit more about the importance of water….Have you had your 8 glasses today?