The Duality of Caffeine

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.

Genes: Why I Drink Coffee Until I Can't Breathe

I have just figured out what the lump on the inside of my right forearm is. It's my oversized CYP1A2 gene, the one responsible for caffeine metabolism cravings. WebMD recently ran an article (thanks for the link, LOML) on how researchers are finding that genes likely play a role in a desire for more caffeine in some people than in others. Really, the concept could change our understanding of addiction, or cravings at least.