Here are some interesting quotes:
"After eight weeks of performing the technique daily, the volunteers gene profile was analysed again. Clusters of important beneficial genes had become more active and harmful ones less so.The boosted genes had three main beneficial effects: improving the efficiency of mitochondria, the powerhouse of cells; boosting insulin production, which improves control of blood sugar; and preventing the depletion of telomeres, caps on chromosomes that help to keep DNA stable and so prevent cells wearing out and ageing.Clusters of genes that became less active were those governed by a master gene called NF-kappaB, which triggers chronic inflammation leading to diseases including high blood pressure, heart disease, inflammatory bowel disease and some cancers.Within minutes
By taking blood immediately after before and after performing the technique on a single day, researchers also showed that the gene changes happened within minutes.For comparison, the researchers also took samples from 26 volunteers who had practised relaxation techniques for at least three years. They had beneficial gene profiles even before performing their routines in the lab, suggesting that the techniques had resulted in long term changes to their genes.[...]"We found that the more you do it, the more profound the genomic expression changes," says Benson. He and his colleagues are now investigating how gene profiles are altered and whether these techniques could ease symptoms in people with high blood pressure, inflammatory bowel disease and multiple myeloma, a type of bone marrow cancer."