Why do humans have (relatively) large penises?

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Compared to chimps or gorillas, human males are unusually well endowed. A new study suggests it's partly because men 'size each other up' before a fight.

29 Jan English Germany Science · Technology

The testosterone age (or Honey, I shrunk my testes)

Influencers, billionaires, even the US health secretary. Proponents of testosterone — as a hormonal therapy or barometer of "masculinity" — are causing men to self-medicate. With nasty consequences.

21 May 30 min

Hantavirus: What to expect from here

This ship phase is over. But the nature of this virus means cases may rise — even as officials contain it.

13 May 30 min

Is the hantavirus the next pandemic?

If you want to understand why the Andes variant of the hantavirus is different than COVID-19, this episode's for you.

7 May 30 min

The ad that makes you drink more

We know advertising works. (It's why the industry exists.) But a new study on beer ads in Germany shows how. Causally.

30 Apr 30 min

How can I tell if someone's smart?

Some people seem to know if others are intelligent. Others... don't. A new study suggests why.

23 Apr 30 min