Why We Laugh

Page 1 <img data-url='document/why-we-laugh.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/1.jpg' width='140' height='200' /> WHY WE LAUGH

Page 2 <img data-url='document/why-we-laugh.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/2.jpg' width='140' height='200' /> MAMMELS LAUGH

Page 3 <img data-url='document/why-we-laugh.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/3.jpg' width='140' height='200' /> UNDERSTAND WITH AGE

Page 4 <img data-url='document/why-we-laugh.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/4.jpg' width='140' height='200' /> INVOLUNTARY

Page 5 <img data-url='document/why-we-laugh.html?page=5' data-page='5' class='cut-thumb lazyload' alt='Page 5: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/5.jpg' width='140' height='200' /> VOLUNTARY LAUGH

Page 6 <img data-url='document/why-we-laugh.html?page=6' data-page='6' class='cut-thumb lazyload' alt='Page 6: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/6.jpg' width='140' height='200' /> CONTAGIOUS

Page 7 <img data-url='document/why-we-laugh.html?page=7' data-page='7' class='cut-thumb lazyload' alt='Page 7: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/7.jpg' width='140' height='200' /> INTE

RACT

IONS

Page 8 <img data-url='document/why-we-laugh.html?page=8' data-page='8' class='cut-thumb lazyload' alt='Page 8: Why We Laugh' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022042610/58ae36231a28ab557e8b615d/html5/thumbnails/8.jpg' width='140' height='200' /> LOWER STRESS

Why We Laugh

Science