Too much of anything CAN be bad, even water!
- 01-15-2007, 03:43 PM
- 01-15-2007, 07:35 PM
Yea that was all over the radio in Australia yesterday.
She should of loaded up on electrolytes.
- 01-16-2007, 10:17 AM
who would have ever thought that could happen. Damn got to watch out how much water I use in the gym. lol. 2 gallons a day I will soon be done for
01-16-2007, 10:38 AM
There are brands that add electrolytes to the water, like smart water
01-16-2007, 10:04 PM
Wow, in Austrailia? Thats cool , that was local here in Sacramento.
01-17-2007, 10:32 PM
This has happened a few times in the Marine Corps already in both Recruit Training and Officer Candidate School. It's called hyponatremia. It doesnt become an issue until your electrolytes are seriously depleted. If you are training in a very hot environment, make sure you are adding a little salt to your meals and a gatorade or two would help as well.
01-19-2007, 10:12 PM
Body fluids contain electrolytes (particularly sodium compounds, such as sodium chloride) in concentrations that must be held within very narrow limits. Water enters the body orally or intravenously and leaves the body primarily in urine, sweat, and exhaled water vapour. If water enters the body more quickly than it can be removed, body fluids are diluted and a potentially dangerous shift in electrolyte balance occurs.
Most water intoxication is caused by hyponatremia, an overdilution of sodium in the blood plasma, which in turn causes an osmotic shift of water from extracellular fluid (outside of cells) to intracellular fluid (within cells). The cells swell as a result of changes in osmotic pressure and may cease to function. When this occurs in the cells of the central nervous system and brain, water intoxication is the result. Additionally, many other cells in the body may undergo cytolysis, wherein cell membranes that are unable to stand abnormal osmotic pressures rupture, killing the cells. Initial symptoms typically include light-headedness, sometimes accompanied by nausea, vomiting, headache and/or malaise. Plasma sodium levels below 100 mmol/L (2.3g/L) frequently result in cerebral edema, seizures, coma, and death within a few hours of drinking the excess water. As with alcohol poisoning, the progression from mild to severe symptoms may occur rapidly as the water continues to enter the body from the intestines or intravenously.
A person with two healthy kidneys can excrete about 900ml (0.24 gal)/hr. Consuming as little as 1.8 litres of water (0.48 gal) in a single sitting may prove fatal for a person adhering to a low-sodium diet, or 3 litres (0.79 gallons) for a person on a normal diet. However, this must be modulated by potential water losses via other routes. For example, a person who is perspiring heavily may lose 1 L/hr (0.26 gal) of water through perspiration alone, thereby raising the threshold for water intoxication. The problem is further complicated by the amount of electrolytes lost in urine or sweat, which is variable within a range controlled by the body's regulatory mechanisms. Water intoxication can be prevented by consuming water that is isotonic with water losses, but the exact concentration of electrolytes required is difficult to determine and fluctuates over time, and the greater the time period involved, the smaller the disparity that may suffice to produce electrolyte imbalance and water intoxication.
Sodium is not the only mineral that can become overdiluted from excessive water intake. Magnesium is also excreted in urine. According to the National Institutes of Health, "magnesium deficiency can cause metabolic changes that may contribute to heart attacks and strokes." Intravenous magnesium is used in cardiac care units for cardiac arrhythmias.
So ...be weary and be cautious with water intake, and drinking "sports" water can help prevent these serious conditions.
01-24-2007, 08:00 PM
I just came across this thread...
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