Great amount of scientific research is there to show that health is better because transcendental meditation deals with consciousness, and consciousness is the basic value of all the physical expressions. The entire creation is the expression of consciousness.
Maharishi Mahesh Yogi on the Bhagavad-Gita, A New Translation and Commentary, Chapters 1-6, New Special Expanded Edition by Maharishi Mahesh Yogi (2016-05-03)