According to palmitry science:
People with life line short it does not means the life is short. The palm lines aren’t fixed and will change as your health and your character changes.
People with lost of fine lines all over palm (a full hand) tend to be stress
If your hands are cold and the nails are white your have probably Anemia. Do prevention and take iron supplements.
If you have horizontal lines on all fingertips you have probably endocrinal problems