This is still an open question. There are a couple of studies that small regular...

hkai on May 5, 2019 | parent | context | favorite | on: A systematic study of microdosing psychedelics

This is still an open question. There are a couple of studies that small regular doses of psilocin in rats and regular huge doses of MDMA in humans may or may not cause heart issues.

Decent summary:

https://thethirdwave.co/psychedelics-heart-risk/

https://thethirdwave.co/microdosing-heart-risk/