On Pentacost Island the ritual that preceded bungee jumping is alive and well. Just why do these tribesmen risk life and limb? To ensure a hearty yam harvest. Great reason. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In World War II, a secret department of British 'corkscrew thinkers' hatched a plan to use the cadaver of an unclaimed homeless man to turn the tide of the war in the Allies' favor. It worked. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Forty years after a Japanese doctor began using whole body cryotherapy to treat patients with arthritis; the technique has made its ways to med-spas and locker rooms throughout the West. But does it actually do anything? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Hippocrates realized that it is even more important to understand the patient than to understand the disease and now, 2000 years later, we are coming back to that way of thinking with personalized medicine. ? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Throughout much of the world, the forests are being managed through sustainable timber harvesting practices. This has come at the cost of much legal battling and a century of practice.   Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There have been a lot of great scientist throughout history, but Sir Isaac Newton might just take the cake. But while he was a certified genius, he was also a little screwy. Dive into the life of this fascinating chap in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Caffeine is a heck of a drug - at the same time it's both good and bad for you. Learn the good, bad and ugly about this everyday stimulant in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Science fiction writers have made some amazingly accurate predictions over the years, but in 1945 the pace of technological change created a field that spun off of sci-fi forecasting, futurology. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Body language is how you communicate without words. Some say it bears more impact in communication than speaking words. Learn about how you say what you say could mean more than you think. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the late 1980s, the United States experienced a "Satanic Panic," leading parents to fear for the safety of their children. But were there any real examples of Satanic ritual abuse? Find out this and more in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Everybody knows how many whacks Lizzie Borden gave her mother and father with that axe, but there is plenty about the infamous double homicide that remains unresolved, like who actually did it. Travel into the mystery of Lizzie Borden in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Great Wall of China is one of the most visited tourist desinations in the world. How'd it get built? How old is it? What's the current condition? Learn this and more in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

It's the most wonderful time of year again! Join Chuck and Josh as they explore Christmas traditions around the world, tidbits about Elf, holiday foods and lots more joyous stuff in this glad tidings-packed episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You know what I heard? That Josh and Chuck hate each other and they're just faking being friends for the show. That's called gossip, folks and it can do serious damage. Learn all about it in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Long ago, in a galaxy not so far away, George Lucas allowed the Star Wars Holiday Special to be made. What happened on the night of November 17, 1978 can never be fully explained, but we make our best effort in a very special edition of SYSK. May the force be with us all. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In 1900 sponge divers found the wreck of a 2000 year-old treasure ship that contained within it a machine that should not exist. Learn of the device that reveals an understanding of the cosmos far more sophisticated than anyone knew the Greeks possessed. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You have very likely used reverse psychology before, trying to persuade someone to do something you want by suggesting they do the opposite. What's behind the bizarre reaction this elicits? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Carl Sagan was the world's first mainstream media super scientist, capapble of breaking down complex ideas for the common folk. But what made him tick? Billions and billions of great ideas. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In part two of the series on HIV/AIDS, Chuck and Josh explore how the battle against the disease is being fought and won thanks to new treatments and possible cures. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

AIDS is one of the most well-known and most misunderstood diseases humans are susceptible to. In part one of this two-part series, Josh and Chuck explain how the disease is contracted and how it works. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

After a year of taking it on the road, Josh and Chuck are releasing their show on public relations. Learn all about the ways you're manipulated on a daily basis and the man who invented it in this fascinating live episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Anonymous is an amorphous group of hacktivists with no single leader or power structure. Some call them heroes, others call them criminals. Can they be both? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The number of people suffering from dementia is expected to explode in the coming decades and, in a pleasant surprise, countries around the world are taking steps to plan for the increase in friendly, caring ways. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Other comedians cry on the inside, but Rodney Dangerfield built his entire act around his sad life. Get to know this legendary comic who was nearing 50 when he got his break. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Gazing too long upon another person is almost universally viewed as anywhere from impolite to hostile, which is odd considering science isn't fully certain why we stare - and why we're so good at knowing when we're being stared at. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Since its re-discovery in the early 20th century, the Medieval codex the Voynich Manuscript has thoroughly puzzled anyone who has tried to unlock its secret language and bizarre drawings. Will it ever give up its secrets? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Cultures around the world over the years have been inspired by, then repulsed, then inspired by maggots' ability to heal persistent wounds. We are in an inspired-by phase right now. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Unless you were raised alone in a basement (in which case you may be the subject of one), you probably grew up on fairy tales. That's appropriate because they may be humanity's greatest psychic projection screen. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Fairy tales are for kids right? Well not at first they weren't. They were dark tales of murder, rape, incest, cannibalism and mayhem geared toward adults. What changed? Chuck and Josh will drop that knowledge and more in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Each year, Chuck and Josh read a couple of scary stories and this year they have a pair of truly frightful tales about a haunted bog and a terrifying spider exhibit. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The concept of passports - that people should enjoy protected freedom of movement - is an ancient one. It wasn't until WWI that they became universal. Learn all about this overlooked, important document. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You've heard lots of complaints about vocal fry, mostly from older white men. But it's not exclusive to the Kardashians. Learn all about vocal fry, upspeak and other quirky speech trends in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There is a way to not only sustainably get rid our household waste, but also produce enough energy from it to power the process and even create electricity for the grid. The future is here! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Wine fraud may be a case of rich con artists tricking wealthy people into parting with money, but it's still a crime. Learn all about this weird, widespread practice in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Darwin asserted that seemingly useless organs and behaviors are left over from our evolutionary history. But as more are found to have a function, the idea has become a flashpoint for the battle between science and religion. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Philadelphia Experiment is a bad movie from the 1980s, and also the conspiracy theory that refuses to die, despite virtually zero evidence of its occurrence. Learn all about this strange non-event in today's show. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Lobbying is an entrenched part of American politics and one that many people think is breaking government. But petitioning the government is protected in the Constitution. How can this system be fixed? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

PEZ began in Vienna as a mint meant to help people quit smoking. But once American kids got ahold of it, the candy took off and a symbol of childhood - and healthy secondary market among collectors - was born. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In part two of the SYSK puberty saga, Josh and Chuck venture into new territory as they explore all of the amazing changes girls face when they come of age. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Green energy is good for all, and it doesn't get much greener than using the Earth's own heat to warm your home or office. Learn all about geothermal energy in today's new episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The fear of cults in the 1970s drove Americans to look the other way on kidnappings, abuse and torture of cult members by deprogrammers - but did it even work? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

At the height of the Cold War, a group of concerned scientists promoted their findings on the horrific aftereffects of nuclear war and were accused of fearmongering. But were they right after all? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Some people call them flacks. Other people call them liars. But if you're in the public eye and suddenly have an image problem, you'll call them your best friend. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Born and raised in South America, chilis were the earliest crop domesticated in the continent and among the first items brought back to Europe by Columbus. Today people are really, really into them. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Police dogs have been used since the 19th century - one WWI German defector became a major movie star. But in the US the post-9/11 era has seen a K9 unit boom and questions and concerns have increased as well. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the US, 17 million people are alcoholics. Not merely abusing alcohol, these sufferers become physically dependent on it, forming a chronic disease. Learn about the effects on the body, the brain, and the life of an alcoholic and ways to get help. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Donating your whole body to further science and medicine is probably the best thing you could do with your corpse. Which is why the industry that handles those gifts need regulating. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Hinduism and Buddhism are closely related in a number of ways, including their vision of what comes after we exit this mortal coil. Learn about the religions' interesting interpretation of the state of existence outside space-time. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.