Yoga research done by students at the colleges and universities throughout the world since 1950.
The research and results were then made into thesis and dissertation work to be presented for Masters and Doctoral degrees.
Some of the work is available online ~ but it is limited.
Go to your library to get a copy of this work ~ ask your librarian for assistance.
Yoga research from 2009- present
Yoga research from 2000-2009
Yoga research from 1950- 1999
or watch this video put out by the National Institutes of Health about Yoga
Alzheimers research and treatment from Harvard University