Could eating yoghurt help treat depression?

Probiotics found in natural yogurt could help boost a person’s mood because they affect brain function, according to new research.
Previous studies had shown that beneficial bacteria affected the brains of rats but no research has confirmed that the same occurred in human brains. The study found that those who ate probiotic yoghurt twice daily for a month showed altered brain function, both in resting brain activity and in response to an 'emotional attention task', which was designed to monitor how the brain responded to certain emotions.
It has been known for some time that symbiotic gut bacteria, the complex ecosystem of microorganisms that live in the human digestive system, promote health by boosting immunity, aiding digestion, as well as maintain a healthy weight and blood pressure.
It has also been known that the brain sends signals to the gut, which is why stress and other emotions can contribute to gastrointestinal symptoms. This study shows that signals travel the opposite way as well.

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