Building a Better Period-Tracking App

On this episode of Prognosis, we'll meet the Bloody Health collective – a group of feminist coders in Berlin who are looking for a safer way to track their periods. Targeted advertising, third-party data sharing and tracking make most menstruation apps just as problematic as they are popular, privacy activists argue. For the women of Bloody Health, the sure way to keep control is to build their own open-source app.See omnystudio.com/listener for privacy information.

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For much of human history, we’ve turned to diets to lose weight and improve our health. But it’s mostly been in vain. No matter how much the number on the scale drops begins to go down, chances are that the weight will come back. That’s just what the science says. But when it comes to weight, the facts just don’t seem to matter. Losing It, a new series from Bloomberg’s Prognosis, looks at how we got weight loss so wrong — and whether there’s a better way forward.