The-Spa-Splurge-10-U.S.-Spa-Vacations-that-Are-Totally-Worth-It-MainPhotoAnd now there is actual proof that meditation has healing powers. A recent study conducted by Harvard University proves that practicing meditation leads to physical and psychological improvements. The study found that meditation literally rebuilt the grey matter in certain areas of the brain. According to Sara Lazar of the MGH Psychiatric Neuroimaging Research Program and a Harvard Medical School Instructor in Psychology, the study “found increased grey-matter density in the hippocampus, known to be important for learning and memory, and in structures associated with self-awareness, compassion and introspection.”