Larger devices such as tank systems, or mods, do not look like other tobacco products
The active ingredient tetrahydrocannabinol or THC may have an anti-tumoural effect in which cells die before they age enough to develop mutations that might lead to lung cancer
The researchers, from the Center for Global Tobacco Control at the Harvard School of Public Health in Boston, along with one colleague from the University of Pretoria in South Africa, speculated that new products like moist snuff helped the tobacco industry hold on to smokeless tobacco customers
The one pictured here is accompanied by another, much smaller one
We know there are lots of bacteria in our mouths, but we dont know how or if those bacteria interact with cancer cells. He adds that research is underway to better understand how bacteria affect oral cancers, like the research looking at the gut microbiomes effect on patients with colorectal cancer