Even occasional cannabis use is linked to worse school performance and emotional distress for teens, finds a new study led by Columbia University.  

Researchers at University of Tsukuba conducted a detailed investigation of changes in the arterial structure and function associated with athletic characteristics, focusing on the various functions of vascular endothelial cells in maintaining vascular health. The study was conducted on college baseball players, who were divided into pitchers and fielders. The results revealed a trend toward poorer vascular endothelial function depending on athletic specialization, particularly in the dominant-arm brachial artery of pitchers.