Medical News Today: Laughter releases 'feel good hormones' to promote social bonding http://pic.twitter.com/8jubFsLTuY — Rollators & Walkers (@RollatorsWalker) June 3, 2017
Medical News Today: Laughter releases 'feel good hormones' to promote social bonding http://pic.twitter.com/8jubFsLTuY
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