Evolving attitudes about marijuana among the majority of Americans, as well as decriminalization laws starting to sweep the nation, have done little to quell questions about the health effects of longtime use among medical professionals, lawmakers, and people on both sides of an ongoing debate about the plant. read more
The black coloration comes from a build-up of carbon. When examined upon death, every single person has some black speckles in their lungs due to everyday living and normal encounters with pollution and smoke. However, people who smoke cigarettes or marijuana, or are constantly in bad air like in a coal mine will have far more black in their lungs. read more