The "healthy line", that is, a line from the bottom of the little finger to life, is actually an "unhealthy line", because people without healthy lines can be healthy.
The healthy lines are intermittent, indicating indigestion in the stomach; If there is a chain, it is a short board of the respiratory system.
If there is an island pattern, there is a throat or head defect at the head end of the pattern and a urinary problem at the line end.