Merck's promising PCSK9 pill results point to a future of extremely low cholesterol, while Pfizer's substantial acquisition of obesity drug start-up Metsera signals major investment in the burgeoning weight-loss market.

• Merck PCSK9 Pill Results Point to Extremely Low Cholesterol Future — The New York Times Health -
• Pfizer to Acquire Obesity Drug Start-Up Metsera in $10 Billion Deal — The New York Times Health -

Advances in brain organoid research are shedding light on fetal development and cognitive disorders, alongside a tribute to Robert H. Bartlett's invention of the ECMO life-support system, and a reflection on how the discovery of the DNA helix profoundly changed our understanding of life.

• What Scientists Are Learning From Brain Organoids — The New York Times Health -
• Robert H. Bartlett, Father of Innovative Life-Support System, Dies at 86 — The New York Times Health -
• The DNA Helix Changed How We Thought About Ourselves — The New York Times Health -