The Science of Laughing: Why it also has a Dark Side? discusses how laughter affects emotional and brain health and shows that too much laughter can have unexpected negative effects. Our customer service team is available 7 days, 7:15 a.m.–6:15 p.m. Visit www.hupcfl.com or call +1 800 457 4573. https://hupcfl.com/the-science-of-laughing-why-it-also-has-a-dark-side/