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Factors generally reducing cortisol levels
Magnesium supplementation decreases serum cortisol levels after aerobic exercise,[50][51] but not in resistance training.[52]
Omega 3 fatty acids, in a dose dependent manner (but not significantly),[53] can lower cortisol release influenced by mental stress[54] by suppressing the synthesis of interleukin-1 and 6 and enhance the synthesis of interleukin-2, where the former promote higher CRH release. Omega 6 fatty acids, on the other hand, acts inversely on interleukin synthesis.[citation needed]
Music therapy can reduce cortisol levels in certain situations.[55]
Massage therapy can reduce cortisol.[56]
Sexual intercourse can reduce cortisol levels.
Laughing and the experience of humour can lower cortisol levels.[57]
Soy derived Phosphatidylserine interacts with cortisol but the right dosage is still unclear.[58][59]
Vitamin C may slightly blunt cortisol release in response to a mental stressor.[60]
Black tea may speed up recovery from a high cortisol condition.[61][62]
[edit]Factors generally increasing cortisol levels
Caffeine may increase cortisol levels.[63]
Sleep deprivation increases cortisol levels.[64]
Intense (high VO2 max) or prolonged physical exercise stimulate cortisol release in order to increase gluconeogenesis and maintain blood glucose.[65] Proper nutrition[66] and high-level conditioning[67] can help stabilize cortisol release.
Val/Val variation of the BDNF gene in men, and the Val/Met variation in women is associated with increased salivary cortisol in a stressful situation.[68]
Hypoestrogenism and melatonin supplementation increases cortisol levels in postmenopausal women.[69]
Burnout is associated with higher cortisol levels.[70]
Severe trauma or stress events can elevate cortisol levels in the blood for prolonged periods