How often should you run when you're starting out?

New runners tend to think more is better — that the fastest way to get fit is to run every day. It's the quickest way to get hurt or burned out instead. When you're starting out, the days you don't run matter just as much as the days you do.

Most coaches point beginners toward three to four days of running a week, and there's no shame in starting at two or three. The goal isn't to maximize miles; it's to build the habit until running is just something you do. Stack the runs with rest in between rather than cramming them into consecutive days — your body needs time between efforts, especially early on.

That's because running doesn't make you fitter while you're running. It makes you fitter afterward, during recovery. The run breaks muscle down a little; the rest builds it back stronger. Skip the rest and you skip the payoff: your muscles stay too tired to adapt, and you're just accumulating fatigue. That's why at least one full rest day a week — no running, no cross-training — isn't optional. It's part of the training.

Once the habit sticks, you can grow, but slowly. A good rule of thumb is to add no more than about 10% to your weekly running at a time. Resist the urge to jump from three days to six the week you start feeling good. Consistency over weeks and months beats any single heroic week, and it's far easier on a body that's still learning to handle the load.

A simple starting frame:

• Run 2–3 days a week, never two days in a row at first.
• Keep at least one full rest day, every week.
• Build the habit before you add days, then grow gradually.

What to do with this: pick two or three running days this week with a rest or off day between each, and hold that pattern for a few weeks before adding anything. Let the habit settle before you chase volume.

Source: ACTIVE.com — How Often Should Beginners Run?