Wiser X

What if we could transfer our energy to other humans? Or our emotions? It would drain us, but rejuvenate them. What if someone kidnapped people exclusively to drain their positive energy? What if one person had depression, and so everyday their significant others drained themselves in order to make them happy, and the other person didn't even know so they just believed they were beginning to recover? What if someone drained themselves so fully to help another that they ended up destroying themselves?