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.

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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.