Yogurt
Fermented foods such as yogurt have long been acknowledged as beneficial for gut health because of the presence of friendly bacteria known as probiotics, which help protect the gastrointestinal tract against harmful pathogens and potentially dangerous microbes. As the understanding of the gut–brain connection develops, science is further acknowledging fermented foods’ positive effect on brain health and even mood.
Green Tea
Having a daily tea ritual is a great way to weave in a moment of calm. Besides the benefits of taking a break from daily concerns to boil water, select a cup, and let it steep, drinking tea is a great way to boost your brain’s ability to ward off stress.
In a Singapore study of 60 healthy seniors, the brain scans of those with a regular tea habit showed improved brain organization brought about by tea’s ability to prevent disruption of interregional connections. Those seniors’ different brain regions had more and healthier interconnections; they were more organized with better hemispheric symmetry.
Dark Chocolate
While you engage in afternoon tea, why not break off a square (or two) of fine dark chocolate? Don’t worry about the jitters one might associate with chocolate—dark chocolate is clinically shown to improve anxiety and deliver a potent feel-good boost of serotonin.

Look for a brand high in cocoa and low in harmful sugars, additives, and hydrogenated oils.