The researchers also found a significant rise in cortisol levels from the sweat component, as compared with the yeast, beginning within 15 minutes of exposure and continuing for up to an hour. (scientificamerican.com)
One of the reasons why the group performing concurrent training probably saw a sustained rise in cortisol is down to the fact that they went from 0 sessions a week to 6 a week. (predatornutrition.com)
By contrast, although the strength training group of men exhibited a similar rise in cortisol at week 8, their cortisol levels declined to baseline values by the end of the trial. (predatornutrition.com)