The stress response pathway creates cortisol and adrenaline (stress hormones), which give people energy to responds to the stressful situation. (myhopewell.com)
This is important because in the wild, plants likely evolved to keep the drought - response pathways inactive until needed so that they could save the energy the responses would require. (sciencedaily.com)
For my clients with seasonal and perennial allergies I use a combination product that works on all three of the allergic response pathways mentioned above. (nourishholisticnutrition.com)