Mum Nature’s June heatwave experienced by many of us stimulated my log entry for proper hydration. Â So very important – Yes?
As some know – too much of a good thing is NOT wonderful (pardon me, Mae West). Â Isolated folks have died from OVER-hydrating in aerobic distance events. Hyponatremia is that rare occurrence of too low sodium from too much hydration.
Putting that outlying, scary fact aside – let’s remember that dehydration of ONLY 1-2 percent or so of your body weight is often an early and prominent sign of fatigue before, during and post- aerobic exercise.
I offer these Medicine Net guidelines ->Â http://www.medicinenet.com/script/main/art.asp?articlekey=79674
Simple things can be hard – yes?  Like ingesting 128 ounces of water a day. But then think about it – a 150 pound person has over 80-90 pounds of water in it; and about 4% of TOTAL Body Weight is exhaled / expired / secreted  daily.  The Math is pretty simple for even a sedentary person – that’s about 6 pounds of water gonzo even before you exercise.  See http://foodsafety.hubpages.com/hub/Hunger-or-Hydration-What-is-Your-Body-Really-Asking-For
What is a Layperson’s quick assessment of hydration/dehydration?
One’s urine color (DO peek before you exercise heavily). If DARK – DRINK! Â Note: You may have some temporary colorations after taking multi-vitamins. Yet the watery bottom line is that Dark is NOT good unless you want to be tired and underperform.
See http://e-infopages.com/wp-content/uploads/2012/07/Urine-chart.jpg
So what about  carbo / electrolyte supplements for exercise?  A rule of thumb I follow is that plain old water is fine for aerobics of 30 minutes or less (and I’m a sweat hog). When I do sip enhanced water – I drink variants with a tad of protein.
And to close out my Water, Water entry today – I thank the folks @Â http://triabilitycoach.com/2012/03/01/a-reference-chart-for-your-body-fat-and-water-percentages/Â for this comparison of male/female body fat percentages to average total body water
Total Body Water Percentage  Â
% Body Fate Range                     Normal % TBW Range
Men | 4 to 14 % | 70 to 63 % |
15 to 21 % | 63 to 57% | |
22 to 24 % | 57 to 55 % | |
25 and over | 55 to 37% | |
Women | 4 to 20 % | 70 to 58 % |
21 to 29 % | 58 to 52 % | |
30 to 32 % | 52 to 49 % | |
33 and over | 49 to 37 % |
 Drink up, avoid fatigue and enjoy your summer aerobics!
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