New findings suggest marijuana may be linked to hypertension, according to The New York Times. The investigators analyzed data from a large health study that included 1213 individuals. Among the participants, 332 deaths occurred, of whom 57% were marijuana users. Even after adjusting for health and behavioral variables, including a prior hypertension diagnosis, the findings showed marijuana users had more than 3 times the risk of death from hypertension-related causes compared with nonusers, according to the article. Although a link to cardiovascular disease and stroke caused by hypertension was observed, it was not statistically significant. “There is a possibility that marijuana use is related to deaths with hypertension as an underlying cause,” lead author Barbara A. Yankey told the NY Times. “People who use marijuana should have regular medical checkups to assess their cardiovascular health.” The authors added that caution should be taken in interpreting this exploratory study.
Americans flooded the streets yesterday to watch the solar eclipse. In a new interview, optometry expert Ralph Chou spoke with NPR to discuss the potential aftermath on the eyes. Symptoms of a damaged retina take at least 12 hours before emerging and include blurred vision, with the center of the vision containing a spot or multiple spots, according to Chou. This type of vision loss can get better over several months to a year depending on the extent of damage, but approximately half of the time it is permanent. If individuals only saw the sun for a fraction of a second without a protective filter, the chances of damaging their eyes is very low. Those who looked at the display of a camera or smartphone, but did not look through the optics at the sun, are not in danger.