Table 2.

Dehydration and clinical effects on performance.⁶⁷

0%-2%	No effect on performance
2%	Decrease in aerobic capacity, especially in warm environmental conditions
3%-5%	Decrease in aerobic capacity continues, loss of anaerobic capacity begins
5%-7%	Cognitive function begins to deteriorate
>7%	Severe electrolyte disturbances, continued cognitive decline, progressive along continuum until possible death