Ever get the urge to drink tomato juice on a flight?

Tomato juice has a long history on planes, going back to the early days of loud, bumpy commercial air travel, when a cocktail was a practical necessity to calm the nerves. When German airline Lufthansa realized they served almost as much tomato juice annually as beer, they set out to discover why. Turns out there's a scientific reason why people dig tomato juice at altitude.

Get the full story from WHYY's The Pulse.

Everyone has their reasons. Most likely, it's a combination of biology and history, a bit of the unknown — and maybe a splash of Tabasco.