Harmonica Colds
A listener asks if he can reinfect himself with the same cold.
Reality Check
Grapefruit & Medication
Grapefruit can interact in potentially dangerous ways with a variety of prescription medications.
Gluten-Free Foods
Gluten-free diets are all the rage, but only a small portion of the population is truly sensitive to …
Octopus Life & Death
Octopuses have an unusual reproductive strategy: they die soon after mating.
Email Spam
Email spammers use disorienting techniques to get you to click on their links.
Artificial Dyes
Some people argue that food dyes are harmful to human health, but do decades of safety research back …
How Paleo is “Paleo”?
Did our hunter-gatherer ancestors really eat a “Paleo” diet?