Today’s Solutions: December 15, 2025

A pregnant woman holds a smart device displaying a screen from the Clue health app, made by BioWink GmbH, in this arranged photograph in London, U.K., on Friday, Oct. 9, 2015. Berlin startup BioWink GmbH, maker of the app that helps women track their menstrual and fertility cycles, has secured funding from investors including an early backer of Twitter Inc. and SoundCloud Ltd. Photographer: Simon Dawson/Bloomberg

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