Life Line: The line, which follows a downward curving path on our hand, is the life line. This shows us the nature and length of the person's life. It also tells us about the health of person. A deep long line suggests a healthy and long life. However, this does not mean that a short line results in a short life. A broken line stands for losses and misery.
But it should be noted that only life line doesn't decide the age of any person. The position and texture of other lines should also be considered for predicting anyone's age.