By Natasha Turner, ND

Phosphatidylserine
Elevated levels of the stress hormone cortisol have been found to be related to memory loss and poor concentration. Phosphatidylserine (PS) belongs to a special category of fat-soluble substances called phospholipids, which are essential components of cell membranes. High concentrations of PS are found in the brain. According to studies PS may help preserve, or even improve, some aspects of mental function in the elderly.

Plant sterols
Sterols have been found to reduce cortisol levels, reduce inflammation and regulate the immune system. If the immune system is running too low, they help boost it, aiding in the prevention of infection; if it is overactive, as in the case of autoimmune disease or allergies, sterols help to make it less reactive.

Siberian ginseng
This is also an adaptogenic herb found useful for normalizing cortisol levels. It is safe for long-term use.

Vitamin B6
Vitamin B6 is useful for correcting abnormally high cortisol levels during the night. Frequent awakenings, particularly at 2 am, 4 am and then 6 am may benefit from B6 supplements.