max September 9, 2025 7 minute read

The covert project to (finally) measure hellish subway heat

Meet Jack Klein, the guy stealthily collects data about New York’s hottest days underground.

Sections: News, Interviews

Photo of Jack Klein, founder of NewYorkLab standing on a subway platform in Brooklyn, NY. — Jack Klein, founder of NewYorkLab. (Max Levy / Sequencer)

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catherine July 16, 2025

Does sleep really 'wash' your brain?

A neuroscientist on what “good sleep” really means.

Does sleep really 'wash' your brain? — The rise and fall of norepinephrine has been linked to the brain waves that help consolidate memories during sleep. (Max Levy, Sequencer adapted from Unsplash)

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