Gil Greengross

Join neuroscientist Sophie Scott, an expert on laughter, as she spills the secrets behind how our bodies produce sounds of joy. Evolutionary psychologist Gil Greengross takes us back to Darwin's musings on laughter's roots and shares studies that reveal humor's heritability. Meanwhile, Nancy Segal regales us with the touching story of the 'Giggle Twins,' two siblings reunited after decades who laughed alike despite being raised apart. Together, they explore the fascinating blend of genetics and environment that shapes our laughter.