Allergic to just one part of an animal?

How do food allergies work, and what's in wine that causes a hangover?
14 August 2021
Presented by Chris Smith
Production by Chris Smith.


Pouring a glass of red wine


Can you be allergic to one part of an animal but not another? What's the point of dreaming? What happened before the Big Bang? What's in wine that causes hangovers, and is this an allergic reaction? Are we seeing into the past when we detect light from far away in space? Why does driving through a long tunnel or across a bridge make me feel giddy? Lester and Dr Chris make your head spin with the answers!


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