Natural selection weeding out Alzheimer’s, high cholesterol and asthma, study finds
Alzheimer’s disease, high cholesterol and asthma are steadily being “weeded out” of the human gene pool by natural selection, the first major study of its kind has revealed. Analysis of the genetic blueprints of 150,000 Britons and 60,000 Americans found the variations associated with the illnesses had noticeably declined in the space of just two …