Modern people often supplement probiotics to improve constipation and allergic symptoms, but in recent years, the international research direction has turned to improving mental illness. Recent studies in China have also found that PS 128 probiotic strain can increase the concentration of dopamine and serotonin in the brain, reduce stress hormones and produce happiness. It is the only spiritual probiotic in the world, and it is expected to develop commodities and drugs in the future, which will help relieve stress and fight depression.

For the study of probiotics, countries all over the world have recently turned their attention to the study of neurophysiological functions, including how to fight depression. Professor Cai Yingjie, director of the Probiotics Research Center of Yangming University and honorary director of the Taiwan Province Lactic Acid Bacteria Association, pointed out that the intestine is a place where the immune system and the nervous system are intertwined. The two-way connection and close relationship between the ventral brain and the brain has long been confirmed internationally, so the intestine is often called the "second brain" or "ventral brain".

The light of Taiwan! Domestic independent research and development of spiritual probiotics

In recent five years, countries all over the world have devoted themselves to the study of neuropsychological functions of probiotics. A few studies in Europe and America have confirmed that probiotics can improve serotonin in the brain and relieve symptoms such as mood, fatigue and anxiety. However, in just two years, the research team led by Professor Cai Yingjie screened and found the probiotic strain PS 128 from more than 2,000 probiotic strains, and found in mouse experiments that this plant strain can not only improve serotonin, but also promote the development of human health.

Professor Cai Yingjie pointed out that this experiment is based on the melancholy behavior pattern of mice. First, mice born for 2 to 14 days were separated from their mothers for 3 hours every day, and stress hormones were injected to cultivate depressed experimental mice. During the experiment, mice were fed with 20 billion to 30 billion PS 128 probiotics every day. Two weeks later, it was found that the activity ability of mice became stronger. The data showed that the concentration of dopamine in the brain of normal mice increased by more than 1 fold, and that of depressed mice increased by more than 3 times. Dopamine is a secretion in the brain, which has the function of transmitting happiness and excitement.