How Alcohol Works - About two-thirds of all adults partake in this mind-altering substance. Learn what alcohol is, how the body processes it and why it has such a big effect on those who drink it.
How Beer Works - It takes a lot to produce a great beer. Take a tour through the brewing process from start to finish, barley to bottle, mash to keg -- and learn to brew at home!
How Breathalyzers Work - To keep drunk drivers off the road, police officers use Breathalyzers to check for alcohol on the breath. Find out how these devices determine blood alcohol content.
How Caffeine Works - You probably drank something with caffeine in it today - 90% of Americans do. Learn why caffeine is America's most popular drug and what it does inside your body.
How Marijuana Works - Marijuana is the most-used illicit drug in the United States. Learn the facts about marijuana and how it affects the mind and body.
How Nicotine Works - Nicotine, like caffeine, is a drug used by millions of people. Find out how nicotine affects the human body and what makes it so addictive.
How OxyContin Works Record numbers of people are illegally obtaining the prescription drug OxyContin. Find out what makes this pain killer so powerful.
How Performance-Enhancing Drugs Work - Every two years, as the Olympics roll around, performance-enhancing drugs are back in the news. Find out what types of drugs athletes use, what their side effects are and how they're tested for.
How Winemaking Works - Many people enjoy wine with dinner or at social events. Learn how wine is made, from grapes to glass!