User blog comment:CaveJohnson333/RWBY Characters Hurt/Heal/@comment-5426254-20151215012523/@comment-27019625-20151215012710

Every single comment you see directly impacts the person's health.

Since you said that, Qrow has been given one more HP, and Cardin lost one. If someone, say, decided to hurt Qrow, Qrow would lose one HP, from the number he had after your healing.