If you can only do one thing, this is it.

Why walking

Daily, low-impact, no equipment, no excuse. 30–45 minutes of brisk walking a day yields better long-term outcomes than a Saturday gym session you skip half the time.

When to walk

Morning before breakfast (best for fasted fat oxidation) or evening after dinner (best for digestion + blood sugar). Both is even better.

Build it in

Park further away. Take the stairs. Walking calls. Sets a baseline activity level that compounds.