Some studies on mice show that cannabis makes cancer better, while others show it makes cancer worse. What did the one and only human clinical trial to date find?

“Cannabis and cancer: reality or pipe dream quackery?” I tackle that question in my video Can Cannabis Cure Cancer?. “Among alternative cancer treatments, cannabis inhabits a peculiarly politicised position, hailed as a suppressed panacea by some, denounced as a psychosis-inducing and illegal drug by others….At the far end of the spectrum are those who insist cannabis…has helped cure their cancer.” “The promise, and even the hype, can reach hysterical proportions, with claims of cannabis cancer cures circulating in cyberspace at a furious pace.”

Sometimes, a patient will have a cancer that is curable with conventional therapies, such as surgically removing it before it spreads, but chooses to forgo that treatment in favor a purported cure that has a “large number

I open my video Does Adding Milk Block the Benefits of Coffee? with a graph from a study of mortality versus coffee consumption that suggests coffee drinkers live longer than non-coffee drinkers. Why might that be? Coffee may have beneficial effects on “inflammation, lung function, insulin sensitivity, and depression,” perhaps due in part to a class of polyphenol phytonutrients found in coffee beans called chlorogenic acids, which have been proven to have favorable effects in studies where it was given alone in pill form. Indeed, they have shown beneficial effects, such as “acute blood pressure-lowering activity,” dropping the top and bottom blood pressure numbers within hours of consumption, as you can see in the graph below and at 0:40 in my video. So, which coffee has the most chlorogenic acids? We know how to choose the reddest tomato and the brightest orange sweet potato, indicating that plant pigments are antioxidants

On a puff-by-puff basis, cannabis smoke deposits four times more tar in the lungs than tobacco, but does that translate into increased cancer risk?

Does Marijuana Cause Lung Cancer? As I discuss in my video, “there are at least 33 carcinogens in marijuana smoke,” including polycyclic aromatic hydrocarbons, which are products of combustion. They are found in grilled meat and flow through the bodies of those who smoke marijuana, similar to what flows through the bodies of cigarette smokers, which is really remarkable, as you can see in the graph and at 0:17 in my video. Most tobacco users typically inhale much more smoke into their lungs over the course of a day than do cannabis users, so, on a puff-by-puff basis, is marijuana smoke really that much worse? 

Compared to unfiltered cigarette smoke, cannabis smoke does seem to contain more benzopyrene and benzanthracene, which are polycyclic aromatic