Being a loving person can help everyone, including yourself. By spreading love, we spread peace, calmness, and feelings of respect for others. Those things alone can help heal the ailments of the world and many individuals who inhabit it.
There is, of course, another aspect of love. And that is the feeling of being IN love. It's passion, admiration, desire, and physical and mental "rushes" all wrapped into one. Being IN love often gets misinterpreted with infatuation (which eventually wears off). While REALLY being IN love is knowing that the other person gets you, fits you "like a glove," and excites you. And - is respectful enough not to want to control you.
When a person feels love it encompasses their being. We all know the affect it can have. Each of us may react in a slightly different manner, but - generally, our emotions are reflective of the positives that love brings. So...if you recognize that love is one of the most powerful elements of life and that the positive energy it conveys can cure so many problems, why not use it to do just that? What could be better than living in a world filled with love?