August 2025

Readers Respond to the April 2025 Issue

Scientific American August 19, 2025 0Comment

Letters to the editors for the April 2025 issue of Scientific American

The 2026 El Niño Is Being ‘Supersized’ as Impacts Worsen

Too little or too much testosterone may matter for heart rhythm

New optical imaging reveals metabolic activity of individual immune cells

Immigrants face longer ICU stays after stroke in Canada