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[[File:Sweat Rate Sodium Concentration for skin temperatures.jpg|none|thumb|400px|Sweat sodium concentration against sweating great, shown for two different skin temperatures.]]
=Sodium Retention=
The human body is very good at has mechanisms to try to maintaining its sodium balance under most conditions. The higher your Greater sodium intake results in the higher excess being excreted in the sodium losses in sweat and urine. There is evidenceConversly, restricted sodium intake will result in a reduction of the sodium concentration of the sweat<ref name="a1946"/> that under moderate sweat . This reduction in the sodium concentration occurs at all sweating rates , but the relationship between sodium concentration and sweat rate remains a straight line<ref name="SweatSaltIntake"/>. So at any given sweat rate, a restricted sodium diet that intake will result in less sodium in the sweat. However, even on a restricted sodium intake, the more you sweat, the greater the sodium concentration. Comparing the maximum sodium concentration of sweat can drop to extremely between a salt intake of 500mg/day and 20,000mg/day, the low levelssalt intake reduced the sodium concentration by 30-48%<ref name="SweatSaltIntake"/>. However[[File:SodiumIntakeSweatConcentration.jpg|none|thumb|500px|The effect of high (20, I have found no evidence to suggest 000mg/day NaCL) and low (500mg/day NaCL) on the sodium retention is effective concentration of sweat at higher sweating various sweat rates<ref name="SweatSaltIntake"/>. Three subjects were put on the diet for a week, then tested for five days while remaining on that diet. The two tests were separated by a month.]]
=Sodium Intake=
Below are some sample sources of Sodium, with the concentrations defined.
<ref name="WBWandPatch">Comparison of regional patch collection vs. w... [J Appl Physiol. 2009] - PubMed - NCBI http://www.ncbi.nlm.nih.gov/pubmed/19541738</ref>
<ref name="Fitzpatrick">Fitzpatrick's Dermatology in General Medicine, Chapter 81. Biology of Eccrine, Apocrine, and Apoeccrine Sweat Glands</ref>
<ref name="SweatSaltIntake">Journal of Investigative Dermatology - The Effect of Salt Intake on Sweat Gland Function1 http://www.nature.com/jid/journal/v50/n6/full/jid196873a.html </ref>
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