Please, for the love of God spend 60 seconds researching before posting stuff like this, because the heart risks of marijuana has been reported on for over 20 years at this point:

2000:

In what is believed to be the first documented link between smoking marijuana and heart attacks, a study has found that a middle-age person's risk of heart attack rises nearly fivefold in the first hour after smoking marijuana.

https://www.nytimes.com/2000/03/03/us/report-links-heart-attacks-to-marijuana.html

2001:

A new study from Boston's Beth Israel Deaconess Medical Center and Harvard Medical School says marijuana increases the risk of having a heart attack within the first hour of smoking to five times that of non-smokers.

https://abcnews.go.com/Health/story?id=117399&page=1

2017: adds strokes https://www.cbsnews.com/news/pot-marijuana-risk-stroke-heart-failure/