e cigarette harmful Teens inhale cancer-causing chemicals in e-cigarettes Scripps Health | E-cigarettes remain

Ventilation, filtration and air cleaning techniques can reduce harmful substances released from marijuana use indoors but are not likely to eliminate them

While can't say for sure yet, the evidence is pointing toward yes." A recent study found that people who both vape and smoke are four times more likely to develop lung cancer than people who just smoke

Illegal and Irresponsible Wild Harvesting The commercialization of white sage has resulted in both illegal and over-harvesting of this natural resource, putting the plant in jeopardy and making it difficult for Native American peoples to participate in their own beliefs and heritage

Results of the two studies, described in a paper in Proceedings of the National Academy of Sciences , surely will not settle the debate.