Video · Why Do We Stretch in the Morning? TwitterShare on Facebook1K 579 525 views SciShow - June 28, 2016 Science SciShow More Videos Why 90-Year-Olds Get Less Cancer Science · 20 hours ago Why 90-Year-Olds Get Less Cancer Science · 20 hours ago These Rocks Are Petrified Lightning Science · 2 days ago These Rocks Are Petrified Lightning Science · 2 days ago The ONE Disease That Smoking Can Help Treat Science · 6 days ago Geology Created Madagascar’s Weird Animals Science · 7 days ago Five Researchers Who Tried To Save Their Own Lives Science · 1 week ago We Have Spent Millions of Dollars on Blue Roses Science · 1 week ago