Dose Response

Here is a figure reproduced in Fortune, showing that when researchers publish articles raising questions about the harms of salt, they cite other researchers who raised similar questions. By contrast, when they definitively argue in favor of the harms, they cite other definitive colleagues. Some of this makes scientific sense. If you show a particular…

Quick quiz question: two people are diagnosed with melanoma – Sarah Sunburn, an adamant sun-worshipper, and Paula Pale-All-The-Time, a fanatical sun-avoider. Who is more likely to die of the disease? The answer is pale-faced Paula. Surprised? Let me unpack this mystery and explain why sun exposure simultaneously kills people, while making the cancers they are…

When I graduated from college, I was chosen as one of the commencement speakers. In my speech, I pretended to be reading a letter I wrote to my father. My dad came to the graduation, completely unaware of my speech. When he heard me start reading the letter, he put his head in his hands…

Shutterstock There are some sad truths about being an aging male. Your muscle mass usually declines. You start feeling tired more easily. And there’s a good chance either you start losing interest in sex, or start experiencing a decline in sexual performance. Here’s another truth—your testosterone level probably ain’t what it used to be. Which…