Please note I split this thread off from heavy metals for a discussion of energy healing.
After I became skilled at experiencing the religious experience known as samadhi from the daily practice of meditation I found various charismatic phenomena often described in healing work, so I began offering healing work, and made a small income doing healing work. I also radically changed my diet and lifestyle and found significant improvement in my health so I also offered guidance in diet and nutrition.
However, while I have had significant improvement in my health during episodes in my life, the most significant recovery from using advanced air purification techniques which I have developed myself, which suggests life expectancy can be increased for people who breathe ultra-purified air, and not related to "energy healing" of even the proper practice of meditation that leads to the 8 stages of samadhi.
Also, in studying longevity I have several friends who have lived more than 100 years. None of these people lived any special lifestyle, or were contemplatives. Their longevity seems to be simply due to genetics.