A normal blood test says nothing looks badly wrong. What it doesn't tell you, what my own results taught me, and where to start.

Tired in your forties or fifties? Some of it is age. A lot of it may be your body telling you something, early enough to act on.

In 2025 I had the best health numbers of my life, and a question I'd avoided for a decade. What they couldn't show, and what finally moved.

After eighteen years of testing things on myself, my list of what matters most is short. The five dials, and how to work out which one to turn first.

The simplest measurement I know needs no device. Once a month, count the days you'd call good. Why I do it, and how to start.

In 1999 I took a malaria pill before a trip to Cameroon. What it did to me, how I found out, and three things you can do today.

Peakspan is the part of your life when you are still at or near your best. Why it matters more than longevity, and how to start protecting yours.