According to this article on Yahoo.
"5. Earlobe crease
Linear wrinkles in one or both lobes may predict future cardiovascular events (heart attack, bypass surgery, or cardiac death). A crease on one lobe raises the risk by 33%; a crease on both lobes increases it by 77%, even after adjusting for other known risk factors. Though experts aren’t exactly sure, they suspect a loss of elastic fibers may cause both the crease and the hardening of arteries."
John thrust his Blackberry into my face and made me read the above passage. All the while moaning, "See! See I told you!".
A few minutes later when I dared to complain about my stomach aching he said, "I don't know why you're bitching. I'm the one walking around with these death sentence earlobes."