Phosphatidylserine (PS) are synthesized in the body of serine compounds, Italy, Scandinavia and other European countries are widely used phosphatidylserine supplements to treat dementia caused by old age and normal memory loss in elderly .For the role of anti-aging:Phosphatidylserine supplements can increase the cerebral cortex of neurotransmitters in the production of acetylcholine, acetylcholine and thinking, reasoning and focus have associated. Phosphatidylserine can also stimulate the synthesis and release of dopamine. Phosphatidylserine and the brain seems to have associated stress response. A clinical study found that in response to the health of people put pressure on the experiment, taking phosphatidylserine crowd response for the pressure lower than other groups. Stress response is by measuring blood levels of corticotropin-derived, ACTH is a hormone secreted by the pituitary, which then promote the secretion of adrenal stress hormone cortisol. Phosphatidylserine mainly for the treatment of dementia (including Alzheimer’s disease and non-Alzheimer’s dementia), and normal memory loss in elderly.