Kernel density estimation explainer

Two decades out from the first statewide ban on smoking in enclosed workplaces, here’s who still smokes.

On average, we use less energy as we age, and so we should eat less. We don’t always adjust soon enough though.

Your hair distribution in the morning, based on how you slept the previous night.

Typical time use varies by who you talk to. This interactive shows you the differences when you vary age and sex.