What is a hug? Many people don't realize the meaningful power that an actual hug may do for a person. People give hugs to show affection, friendship, love, etc., but it can actually do so much more for people. Scientific research can prove that stimulation by touch is absolutely necessary for our well-being. Touch can be used as a power for healing, in pain and depression, in anxiety or sickness. A hug can be much more than one actually may think. .