How much time do you think you need for a good workout?
An hour?
Maybe 45 minutes if you’re really rushing?
I think this idea that every workout needs to be a long trip to the gym can actually make staying in shape harder than it needs to be, especially once you hit your 40s and you’ve got work, family, errands, and everything else fighting for your time.
Sometimes you just don’t have an hour.
But you might have 10 or 15 minutes.
And instead of looking at that and thinking, “That’s not enough time to work out,” you can actually use it.
That’s the idea behind shorter or “micro” workouts. Instead of depending on one long workout, you break some of your activity into smaller sessions that you can fit throughout your day.
Maybe you’ve got 15 minutes in the morning and you knock out a quick strength workout.
Later in the day you take a brisk walk.
Maybe you spend another 10 minutes doing some mobility work in the evening.
None of those sessions look particularly impressive by themselves. But add them together and you’ve accumulated a decent amount of activity without ever needing to find a huge block of free time.
And there’s an important distinction here.
I’m not saying a 10-minute workout is automatically better than a 60-minute workout.
If you’ve got an hour, you enjoy longer workouts, you’re recovering well, and they’re getting you closer to your goals, keep doing them.
The point is that duration isn’t the only thing that determines whether exercise is useful.
This is especially worth remembering if your current alternative is doing nothing.
There’s research supporting the idea that physical activity doesn’t have to happen in long, continuous sessions to benefit your health. In fact, the current Physical Activity Guidelines for Americans removed the previous requirement that aerobic activity had to occur in sessions of at least 10 minutes to count toward your activity goals. Activity accumulated throughout the day can contribute toward your overall weekly total.
Research looking specifically at accumulated shorter bouts of physical activity has also found that shorter bouts can contribute to health benefits. A systematic review and meta-analysis published in the Journal of the American Heart Association found that accumulating moderate-to-vigorous physical activity in shorter bouts was associated with health benefits comparable to activity accumulated in longer bouts for several measured health outcomes.
That opens up a lot of possibilities for people who have trouble finding time to exercise.
It also gives you some flexibility with strength training.
A short strength session obviously isn’t going to let you do everything you could accomplish during a longer workout. But you don’t necessarily need to train every muscle and perform every exercise every time you pick up a weight.
If I’ve only got 15 minutes, I can still get something productive done.
I could do a few hard sets of squats and push-ups. Maybe dumbbell rows and overhead presses. Maybe I focus on one or two muscle groups and hit something different during my next session.
I’d rather have several short, productive workouts that I can consistently complete than create the “perfect” hour-long program that I rarely have enough time to do.
That’s really where I think shorter workouts can become useful after 40.
Life tends to get more complicated, not less.
You may have a career, kids, a spouse, appointments, housework, and about twelve other things waiting for you when you finally get some free time. If your fitness routine requires the stars to align and give you an uninterrupted 90 minutes every day, staying consistent is going to be difficult.
Shorter workouts give you another option.
They can also make it easier to adjust your training based on how you’re feeling. If you’re sore from yesterday’s strength workout, today’s short session doesn’t have to be another hard strength workout. Take a walk. Work on mobility. Do something lighter and come back to strength training when you’re recovered.
The goal isn’t to cram as much intensity as possible into every spare 10 minutes you have.
That’s where I would change one thing from the original idea of doing three 12-minute sessions every day.
For some people, that might work great. For someone else, three workouts every day could become just another complicated routine that’s difficult to maintain.
I’d start simpler.
Find one small block of time that you’re currently wasting anyway.
Maybe it’s 10 minutes before work.
Maybe it’s part of your lunch break.
Maybe it’s the time you normally spend scrolling through your phone after dinner.
Use that time to move.
If that becomes easy to maintain, add another session somewhere else.
You can still have longer workouts during the week too. This doesn’t have to be an either/or decision. Maybe you strength train for 45 minutes three days per week but use short walks or mobility sessions on the other days.
Build the routine around your actual life instead of trying to build your life around the routine.
And don’t judge whether it’s working only by what you see in the mirror.
Pay attention to whether you’re getting stronger. Whether walking up a flight of stairs feels easier. Whether your mobility is improving. Whether you have more energy. Whether you’re actually exercising consistently instead of constantly starting over.
Those are wins too.
A 12-minute workout isn’t magic.
But it’s also not worthless.
And if shorter workouts make it easier for you to consistently move, train, and take care of yourself, don’t dismiss them just because they don’t look like the hour-long workouts you think you’re supposed to be doing.
Sometimes the workout you can consistently fit into your life is more useful than the perfect workout you never have time to do.
