no. Marijuana can be smoked as plentiful as possible, it does not affect your heart, only your brain.
It affects your heart at any dose, by increasing your heart rate a little. That's about it though. Negative effects on your heart could only be from ridiculous amounts of marijuana. Like 4-10 joints a day.
No.
Marijuana is a drug. So yes, by definition, it affects you.
Marijuana may cause memory loss.
marijuana can cause anxiety wich increases your heart rate , lorazepam will slow down your heart rate and calm you
it destroys the heart by slowing it down
Your heart rate increases.
A study reported by The American Heart Association in February 2000, concluded that smoking marijuana can precipitate a heart attack in persons with preexisting heart conditions.
it doesnt
YES
Yes