Activity snacks and short bouts

What are activity snacks?

An activity snack is a very short burst of movement, usually 1 to 5 minutes, fitted into your day instead of one long session^1,3. There's no timetable to keep and nothing to buy: snacks can be done in everyday clothes, indoors or outdoors¹.

Ideas that fit into a normal day:

• Get off the bus a stop early, or park further away and walk¹.
• Do calf raises while you brush your teeth^1,3.
• Do squats while you wait for the kettle to boil³.
• Take the stairs instead of the lift^1,3.

Snacks are also used with older adults. Short, structured bouts of 1 to 10 minutes done at home at least twice a day are a low-dose option for people who find usual exercise programmes hard to take part in⁴. They are linked with better leg strength^4,5. How well snacks work over the long term for people who are inactive isn't clear yet.

Any snack is a start. The WHO says some physical activity is better than none, and that you should start with small amounts and build up how often, how hard and how long over time².

Do short bouts of activity count?

Yes. Bouts of any length count towards your weekly activity, and there is no minimum of 10 minutes at a time. The WHO dropped its old 10-minute rule because activity of any bout length is linked with better health, including a lower risk of early death². Activity in bouts under 10 minutes is linked with better health, not only activity in longer bouts⁶. Most studies found no difference in how short and long bouts relate to health⁷.

Benefits appear at levels below the guideline, which is why some activity is better than none². For adults, including those aged 65 and over, the WHO gives 150–300 minutes of moderate-intensity activity or 75–150 minutes of vigorous activity a week, or an equivalent mix². Treat that as a direction to build towards and a minimum to aim for; doing less isn't wasted. Moderate effort means you can talk but not sing. Vigorous effort means you can't say more than a few words without pausing for breath.

Very short, hard bursts may add up too. In adults who did no exercise, as few as two or three bursts a day of 1 or 2 minutes (about 3–4 minutes in all) during daily life were linked with a lower risk of dying early⁸. This covers vigorous bursts in mostly middle-aged and older adults, and it doesn't mean you should start with hard efforts or that gentle activity brings the same. Most of the support for bouts under 10 minutes, including this, shows a link and not a cause⁶.

Can you split exercise into shorter sessions?

Yes. Bouts of any length count, so you can spread your activity across the day in whatever pieces suit you². A walk after breakfast and another after dinner is one way to do it. Shorter sessions can suit you if long ones feel off-putting or hard to fit in.

Splitting doesn't seem to make exercise easier to stick with, though: drop-out was slightly higher with split sessions than with one continuous session⁹. So choose a pattern you can repeat, notice whether it works for you, and change it if it doesn't. It isn't clear yet which pattern of bout length and frequency is best for health⁷, so the best pattern is the one you keep doing.

Build up gradually. Start with small amounts, then add more sessions or make them a little longer over the weeks². If you walk, a brisk pace is about 100 steps a minute or more for most adults, or roughly 2.5–3 mph (4–5 km/h) or faster. These are rough guides: the pace that's brisk for you varies with your height, age, fitness and any disability.

Keep your weekly total in mind as the longer-term goal, and reach it in whatever pieces suit your day.

When to check with a health professional

If you're starting exercise after a long break, it's always a good idea to see your doctor first.

For an injury or a health condition, see a health professional, such as your doctor or a physio. They can also help you choose the right type and amount of activity.

Call your local emergency number for chest pain or pressure (or pain spreading to the arm, neck, jaw or back, especially with sweating or feeling sick), severe breathlessness, fainting or collapse, signs of a stroke, a serious injury, or someone who isn't safe.

For a sore muscle or joint, or a condition flaring, ease off or stop. See a doctor or other health professional if it persists or gets worse. If you develop new symptoms as you do more, check in with a healthcare provider.