6. Tickling is a way to assert dominance.
A person being tickled loses self-control. The struggle to gain control can be humiliating for the child and can leave unpleasant memories for a lifetime. When adults tickle kids, they mostly mean to have fun, but that doesn’t mean the outcome won’t be harmful.
According to Dr. Richard Alexander, Professor of Evolutionary Biology at the University of Michigan, tickling can very well be a form of dominance and the laughing that follows is an evolutionary way of showing submissiveness.
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