smoking marijana and your heart?

I have smoked marijana for over 35 years. I also smoked tobacco on and off for that long of time.  I want to know what smoking marijana does to your heart? Does it do the same thing that tobacco does? I had a heart attack in Dec. of 2008 and a triple bypass in Jan.2009. I know that diet, lack of exercise, and stress play a big part in heart dease. Please help me find some answers. Thankyou.

[MamaBush]

Marijuana, weed, pot, whatever you want to name it contains four times the amount of cancercausing substances as cigarette smoke. It has 12 times more tar and 10 to 20 times more carbon monoxide (gas that comes from the tailpipe of a car) than cigarette smoke.

Marijuana smokers also inhale deeply and hold the smoke in their lungs to get "high." That means the lungs are exposed to more chemicals.

Marijuana also can harm the heart and blood vessels. It increases heart rate by as much as 50 percent. It also reduces the supply of oxygen, causing chest pain in people who have heart problems.


THERE YA GO! *smiles*

[Quori]

What you just said is so far from the truth as to be laughable. Look at the research, the biggest study so far concluded that even heavy pot smokers (several joints a day) had NO increased chance of getting lung cancer. Their chance of getting it actually DECREASED slightly. They think pot may actually protect against certain kinds of head and neck tumors. I know it sounds counterintuitive, but it is absolutely true, it's been in the news a lot lately. The stuff you said about tar and carbon monoxide is all propaganda, and none of it is true. I don't smoke pot, so I'm not biased, I just read a lot and keep an open mind, especially about things that people seem to accept as 'common sense' which are actually nonsense.  

[ed34]

No drugs are good for the body and there are toxic chemicals in cigarettes/joints.
IF there are any benefits from smoking weed, which I highly doubt, then I would
never believe in a million years that they would outweigh the bad things. I think
the propaganda has probably originated from the people actually smoking the stuff.
If there was nothing wrong with weed, it would have no effects on the body at all, the
body would function as normal. To sit there on a high with a plastic smile stuck on
your face for no reason, feeling 'zonked' is enough proof for anyone with common
sense to know the body is NOT functioning normally.
Why dont you do a simple experiment. Eat an orange and then smoke a joint, see
which causes strange occurrences in the body. I bet you a years salary it will be the
joint. I've never heard of anyone smoking joints being less prone to having cancer either.
Perhaps you can refer me to the source of this medical study so I can read up on it.