Monica Bellucci is a famous Hollywood actress. In her right hand there is a sign of "double life line" or strong Mars line behind life line (image is not very clear).
Life line shows vitality and Mars line is a sister line of Life Line.
Meaning Of Double Life Line Palmistry
Location of double life line - A line running parallel to life line.
Result of double life line - Protection from long-illness and accidents. Double lifeline indicates good health and vitality, indicates strong physical ability . Double Life Line shows influence or impact or support of spouse and family or support from opp. sex.
Western palmists theory about double life line - If you have an auxiliary line running close and parallel to your life line on your palm then you are likely to encounter many dangerous incidents in your life but you'd survive them splendidly. In other words your guardian angel will save or protect you from any danger in your life.
See example image of double life line below-
