Story time on aspirin

USA Today, who brought us a dubious early signaling system for sudden cardiac arrest in a prior post, also gave us “Story Time!” on aspirin on the same day (link). The article started with the conclusion: “Taking an aspirin before bed may reduce the chance of having a heart attack or stroke in the morning”. What is the data used to support this cause—effect statement? *** The researchers looked at 290 patients with heart disease and were taking aspirin. They asked some to take the aspirin on waking and some at bedtime. The group that took the aspirin before sleeping...