Here are some links to announcements of recent research on Transcendental Meditation:
Brain research
https://www.miu.edu/wp-content/uploads/sites/2/2020/02/1-29-20.html#brain
Cardiovascular disease
https://eurekalert.org/pub_releases/2019-12/miu-tmp122419.php
Cardiovascular disease
https://www.eurekalert.org/pub_releases/2019-12/muom-pss112619.php