I just noticed that I have creases on both ears. Is there truth to the claims that these creases indicate underlying coronary artery disease?

Use it to advantage. Okay, I was expecting to tell you to just ignore this. I wish I could. Well respected journals do not a correlation in those w/ symptoms. W/o symptoms it is less true and there is no clear idea re cause. Correlations are not easy to make sense of. They can be of minimal meaning while true. Work w/ your Doc to prevent disease or catch signals early and stay on track w/ healthy living habits. Best!