One that i thought was important to share with everyone was the earlobe crease.
the linear crease on the earlobe starting near the head and angling out is a predictor of heart disease.
it is a good indication that the elastin in the body is starting to harden. you arteries need to be elasticy to expand and contract when the heart pumps blood.
keep an eye on your earlobes and those of the people you love. if you notice the crease talk to your doctor about the implications.