00:00 Every year, about 12 million visitors go to Niagara Falls, and some people intentionally go over the falls.

03:34 People have gone over Niagara Falls in barrels, with 16 people doing so from 1901 to 2003, and the last known person attempting it in 2003.

07:02 People go over Niagara Falls because the American Falls has a large drop onto rocks, making it not a good idea to go over, while Horseshoe Falls is the one that people typically go over; daredevils have higher levels of testosterone and lower levels of serotonin, which curbs impulsiveness, and there is also a genetic explanation involving the staffman gene; daredevils often say they don't fear things like most people do.

10:27 The first person to intentionally go over Niagara Falls was Annie Edson Taylor in 1901, who did it as a stunt to make money and fame, but ended up dying penniless.

14:08 Bobby Leach, the first man to go over Niagara Falls after Annie Edson Taylor, survived the stunt but later died from complications after slipping on an orange peel, while Charles Stevens, who went over in 1920, died when the anvil he had in his barrel broke through the bottom and dragged him down with it.

17:42 Nathan Boya, the first African American to go over Niagara Falls, successfully completed the stunt in 1961 and was also the first person to be fined for breaking a law that made it illegal to go over the falls on purpose.

21:12 Going over Niagara Falls in a barrel is not a good idea and is essentially virtual suicide, as demonstrated by the high number of illicit drug users worldwide compared to the small number of people who have successfully gone over the falls on purpose.

25:03 The hosts read and discuss various Haikus sent in by listeners.