Laugh statistics: "Older women tend to laugh less often than do younger women, whereas age is not related to total laughter in men. " https://www.researchgate.net/profile/Rod_Martin/publication/269621027_Daily_occurrence_of_laughter_Relationships_with_age_gender_and_Type_A_personality/links/54aae8ef0cf25c4c472f6ca9.pdf … https://books.google.de/books?hl=de&lr=&id=CPzCpn3o37cC&oi=fnd&pg=PR7&dq=provine+%224,000+cell+phone+users%22&ots=sbY_jVvTZ3&sig=CzK2zGd3j2a2QzwzqD3cYEV4k0g#v=onepage&q=provine%20%224%2C000%20cell%20phone%20users%22&f=false …pic.twitter.com/K2N5Ma9IMv

