ORIGINALLY AIRED: 12/6/2005

Episode 22: Hair of the Dog

Episode #5022

Here on Braininac, we always aim to use science to answer those really burning questions, but for those of you who like to marinate your liver on a regular basis, we've got some really useful answers, including:

• Which is the best cure for a hangover?
• Can CO2 stop rock n' roll?
• How many vacuum cleaners does it take to lift a human being?
• Is it better to be tall or small--in a step aerobics class?