The NHS has clear, evidence-based guidelines on how much physical activity adults need each week. The target is more achievable than most people think — and walking counts.

The NHS weekly exercise target for adults (19–64)

The NHS recommends that adults aim for:

At least 150 minutes of moderate-intensity aerobic activity per week (e.g. brisk walking, cycling, swimming) — OR 75 minutes of vigorous activity (e.g. running, football, aerobics).

PLUS strength exercises on two or more days per week — working all major muscle groups (legs, back, abdomen, chest, shoulders and arms).

These guidelines come from the UK Chief Medical Officers' Physical Activity Guidelines (2019), which are the most recent evidence review. They're broadly aligned with WHO guidelines.

What counts as moderate-intensity exercise?

Moderate intensity means your heart rate and breathing are elevated, but you can still hold a conversation — what the NHS describes as "working hard enough to raise your heart rate and break a sweat." Activities that count:

What counts as vigorous intensity?

Vigorous intensity means you're working hard enough that speaking in full sentences becomes difficult. One minute of vigorous activity provides roughly the same benefit as two minutes of moderate activity — which is why 75 minutes of vigorous is considered equivalent to 150 minutes of moderate. Activities that count:

What counts as strength training?

The NHS guideline specifies strength exercise on at least two days per week. This doesn't mean gym membership. Activities that count:

How to meet the 150-minute target: realistic options

OptionHow it works
5 × 30-min brisk walksWalk Mon–Fri during lunch or after work. Zero equipment, no cost.
3 × 50-min moderate sessionsThree gym sessions, swim sessions or cycle rides per week.
Daily 22-minute brisk walkSmall daily habit that adds up to 154 minutes over the week.
Mix of vigorous + moderateTwo 30-min runs (60 min vigorous = 120 min moderate equivalent) + two 15-min brisk walks

Can activity be accumulated throughout the day?

Yes — and this is one of the most important updates in the 2019 NHS guidelines. You no longer need to complete activity in 10-minute minimum bouts (the previous guideline). All movement counts, and it accumulates throughout the day. Three 10-minute walks count exactly the same as one 30-minute walk.

This makes the target much more achievable for people with busy or fragmented schedules.

What if I currently do no exercise?

The NHS is explicit: any increase in activity is beneficial. If you currently do nothing, going from zero to 30 minutes of walking per week has more health impact than going from 120 to 150 minutes. The biggest gains come from moving from sedentary to slightly active.

A realistic starting point for sedentary adults: a 10-minute brisk walk every day. This creates a habit, causes no injury risk, and can be extended gradually once it becomes routine.

Exercise for older adults (65+)

The NHS guideline for adults aged 65 and over is the same 150 minutes of moderate activity per week, with additional emphasis on:

Sources: UK Chief Medical Officers' Physical Activity Guidelines (2019), NHS Live Well, World Health Organisation Global Action Plan on Physical Activity 2018–2030.