- One size does not fit all for aspirin use: Researchers found that low-dose aspirin daily lowered the risk of cardiovascular events by 23% for people weighing less than 154 lbs, but had no effect in those weighing more. In people over 154 lbs, low-dose aspirin increased risk for a fatal event. https://www.thelancet.com/journals/lancet/article/piis0140-6736(18)31133-4/fulltext 11 comments science