Pschyoneuro-immunology (PNI) - the latest research.

The link between central nervous system stress and peripheral immune cells is well documented. More recently, it's been shown that psychological stress can be 'disease permissive'. That is, there's a relationship between chronic inflammatory diseases, cancer, cardiovascular diseases, acute and chronic viral infections, sepsis, asthma, and stress. A nice summary in this recent review article here.

Meditation: Effect on Cognitive Blood Flow and Memory.

Regular meditation may slow the epigenetic clock.