Add some green to your Black Friday with 20 percent off all merchandise on DrGreger.org. The sale is site-wide, so it includes all clothing, video downloads, outreach materials, and more. If you’re heading into winter, cozy up with our sweatpants (back by popular...

What would happen if you stopped brushing your teeth but ate more healthfully?  Experimentally, when study participants stop brushing their teeth, plaque starts to build up and, within a few days, their gums start to get inflamed. Though nothing may be visible just...

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...

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,”...

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,...

The consumption of berries can enhance “beneficial signaling in the brain.” Plant foods are our primary source of antioxidant and anti-inflammatory compounds, but some plant foods may be better than others. As I’ve explored before, a randomized, double-blind,...

Only about one in four people have heard of Campylobacter, compared to 90 percent who are familiar with Salmonella. “Although the incidence of these two…gastrointestinal infections is amazingly high,” infecting more than a million Americans every year, “it is even...

Psoriasis is a chronic, inflammatory skin disease that affects about one in 40 people, making it “one of the most frequent chronic skin diseases worldwide.” There are a lot of different drugs for it, some of which cost more than $100,000 a year to get a response....

What does the best available balance of evidence say right now about what to eat and what to avoid to reduce your risk of cancer?  In 1982, a landmark report on diet, nutrition, and cancer was released by the National Academy of Sciences. It was “the first major,...