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.

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The Duality of Caffeine

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Peyton Hardin Episodes Around January 14, 2016

The Lowdown on Anonymous

Live in Chicago: How Public Relations Works

How HIV/AIDS Works, Part I

How HIV/AIDS Works, Part II

Carl Sagan: American Hero

How Reverse Psychology Works

How the Antikythera Mechanism Works

The Star Wars Holiday Special of 1978

How Gossip Works

The Stuff You Should Know 2015 Jolly Christmas Extravaganza

The Great Wall of China Episode

How Lizzie Borden Worked

The "Satanic Panic" of the 1980s

Body Language!

How Futurology Works

The Duality of Caffeine

Sir Isaac Newton: Greatest Scientist of All Time?

Timber! How Timber Works

How Personalized Medicine Works

Does Whole-Body Cryotherapy Work?

Operation Mincemeat: How A Corpse Fooled the Nazis

How Land Diving Works

How Rabies Works

What's the Deal With Poop?

How Jackhammers Work

How Nitrous Oxide Works

The Future of Renewable Energy, Featuring Bill Gates

(Approximately) 10 Things That Vanished Mysteriously

How El Nino Works

How Freak Shows Worked

How The Iditarod Works

Summary