Comment by tokenadult

The Framingham study is a good study for what it is about (risk factors for heart disease), but the study is probably inadequate for studying general selection pressure on the whole human population.

http://norvig.com/experiment-design.html

The key quotations in the article are

Douglas Ewbank, "Those changes we predict for 2409 could be wiped out by something as simple as a new school-lunch program."

Steve Jones, "Uniquely in the living world, what makes humans what we are is in our minds, in our society, and not in our evolution."