Here is a link to the study data. Thinning the blood as aspirin does is necessary in some applications, for example I use it after some surgery to help prevent blood clots. But the real answer to gaining the improved health that aspirin is supposed to provide is the same answer it always is: low body weight, regular vigorous exercise, sleep, healthy diet, judicious sunlight and avoidance of smoking and substances.
One can argue that the promise that a drug can help overall health is actually counter-productive because it gives the impression that one can lead an unhealthy lifestyle and compensate with medications. Always a bad idea. But always easier to take a drug that lead a healthy lifestyle. Really, avoidance of drugs of any kind, except when clearly necessary, is another lifestyle factor that improves health by avoiding the side effects that all drugs have. And drug benefits are always touted first and the harms are reported later – as is the case here with aspirin.