Marijuana is effective in treating some illnesses, but there’s not enough science to determine its efficacy for others, a new report has found. The massive study may be the most up-to-date and comprehensive look at the efficacy of medical cannabis ever. There is “substantial” and “conclusive” evidence that cannabinoids, the compounds found in marijuana plants, can be useful for patients... 

A team from the Israel Institute of Technology has developed a device that from a single breath can identify diseases such as multiple forms of cancer, Parkinson’s disease, and multiple sclerosis. While the machine is still in the experimental stages, it has a high degree of promise for use in non-invasive diagnoses of serious illnesses. The international team demonstrated that a medical theory...