You don’t need 10,000 steps a day. Recent research shows 8,000-10,000 per day is good for people under 60, and 6,000-8,000 for people over 60.

And more good advice about exercise and fitness. It’s easier than you might think.

• It doesn’t matter a lot how fast you walk.

• Forget about the US government’s guidelines of “at least 150 to 300 minutes of moderate-intensity aerobic activity” per week. Too confusing.