Richard Sima is a neuroscientist turned award-winning science journalist who writes the "Brain Matters" column for The Washington Post's Well+Being desk. Accessibility statement Skip to main content.

WeightWatchers CEO Sima Sistani out in abrupt exit, embraced weight loss drugs Board member Tara Comonte, former president and CFO of Shake Shack, will serve as interim CEO. Facebook; ...

WeightWatchers CEO Sima Sistani, who pushed the company into embracing weight-loss drugs, is leaving the position after a two-year stint. CNN values your feedback 1.

SiMa.ai was founded in 2018, has raised $270M, and is backed by Fidelity Management & Research Company, Maverick Capital, Point72, MSD Partners, VentureTech Alliance, and more.

Sima Sistani, the 44-year-old CEO of WeightWatchers, is aware of this, and she recognized WeightWatchers had to evolve – or else. She knows she can’t beat Wegovy.

So SiMa.ai built the MLSoC chip as an embedded platform. In the MLPerf 3.0 round, the company bested NVIDIA Orin power efficiency (images/second/watt) for image classification by 47%.

Sima Wali, exiled champion of Afghan women, dies at 66 October 12, 2017 More than 7 years ago Sima Wali, left, attends the 2001 U.N. talks on Afghanistan in Bonn, Germany.