You could get a very sore neck watching all the claims and counter-claims about mammography zing back and forth. It’s like a lot of evidence ping-pong matches.
Have you been forgetful lately? Any difficulty concentrating? Trouble recalling names? Answer “yes” to even one question like that, and there are some who want you to head to a clinic for memory screening.
Act I: An ounce of “prevention.” “Prevention is better than cure.” Aphorisms like this go back a long way. And most of our dramatic triumphs against disease come from prevention: clean water, making roads and workplaces safer, antiseptic routines in hospital, reducing smoking, immunization, stemming the spread of HIV.