Falling in love is something anyone can do. The infatuation at the beginning is quite easy. However, maintaining a lasting relationship despite familiarity, annoyance, and weight gain—not only managing it but also enjoying it and enriching each other—requires much more. Werner Bartens shows how chronic partnerships can succeed and why being together is worthwhile for many reasons. It has long been proven that a loving relationship not only helps us stay healthy but also prevents illnesses and can even positively influence the prognosis of cancer patients. Affection, closeness, and the good feeling of being loved strengthen the immune system, reduce pain perception, and keep blood vessels elastic. The health benefits of a successful relationship are remarkably significant, ranging from the common cold to stroke, heart attack, and tumor diseases.