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Play fighting – also known as roughhousing – releases a chemical called BDNF (brain-derived neurotrophic factor) which stimulates neuron growth
Via Homeschool Guru:
https://homeschoolguru.org/2020/04/28/get-ready-to-rumble-safe-rules-for-serious-play-fights/
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The poet/editor of this website is physically disabled, and lives at a fraction of her nation’s poverty level. Contributions may be made at:
Poetic Justice 