So, if you’re someone who seems to be highly sensitized to stress, you might get the impression that there’s something “wrong” with you. (Spoiler alert: there’s not.)

Yesterday marked the 36th year that the world observed World No Tobacco Day. This relatively obscure milestone masks a stalled effort to curb consumption of combustible cigarettes and other nicotine-related products. It’s unlikely most people paid any attention. But the impact of smoking is all around us, even if we don’t see it. Statistics rarely tell a provocative story to compel people to action.

A machine-learning AI model estimates the likely risk of disease progression for a given patient with breast cancer.

I AM MORE INTERESTED IN HEALTHSPAN than lifespan. I wouldn’t like to live too long with severe dementia. Today’s essay explores eight healthy habits that might add decades to your life.