Pfizer and moderns are doing long term follow up studies to see what the long term effects are(if any) on patients who had diagnosed cardiac inflammation (myo and peri) carditis. secondary to mRNA vaccine.vsome recent published articles in medical and scientific journals report possible evidence of cardiac tissue damage (increased troponin levels) in uninfected, vaccinated subjects.
I believe more documented side effects will work their way into reporting threshold levels as time goes by and the fear of the virus disease wanes.
A month ago my doctor’s office nurse ran EKG for me. My heart is running flawlessly. My regular exercise routine is doing amazing benefits for me at age 82.5
Lack of regular exercise can harm any heart easily, such as a new mRNA based vaccine. My goal right now is to be disciplined about exercise and publish my exercise video at age 100.