Weird piece of email spam I just got. “你好! 每周至少使用1次牙线，与较低的中风风险有关，特别是由血栓和心律不整引发的中风。”, which translates to “Using dental floss at least once per week is associated with a lower risk of stroke, especially strokes caused by blood clots and irregular heart rhythm….” Along with a link. I didn’t click.