Insights

Madrid had not quite turned toward autumn.

Optimization is useful because it forces a question into the open: what, exactly, are we trying to improve?

During my recent stay in Lima, I spent more time than usual accompanying family members through clinics, consultations, tests, and hospital visits.

A smartwatch can flag an irregular rhythm. A blood panel can reveal a deteriorating marker before symptoms appear. Imaging can identify abnormalities that would once have remained invisible. Risk models can tell clini...

Self-improvement usually begins with something visible. Sleep is poor, so we work on our sleep. Exercise has disappeared, so we design a routine. Food has become erratic, so we clean up the kitchen. Attention is fract...

The first thing New York took from me on my last visit was my MetroCard.