Ask ten people how often to train your abs and you'll hear everything from "every single day" to "never — squats are enough." Both miss the point. How often depends mostly on how hard each session is.
The short answer
Two to three dedicated core sessions a week, with a rest day between them, is a sensible target for most people. Gentle core work — practising bracing or a few slow dead bugs — can be done most days. What you don't want is a hard ab workout every day, because muscles need time to recover between demanding sessions.
That lines up with official guidance. The CDC and the NHS both recommend muscle-strengthening activity on at least two days a week, and both list the abdomen among the major muscle groups to cover. The NHS also recommends allowing at least a full day's recovery between strength sessions.
What counts as core training?
Your core isn't just the "six-pack" muscle at the front. It includes the deep abdominal muscles, the obliques along your sides, the muscles along your spine, and the glutes and hips that connect it all to your legs. Their main job is keeping your trunk steady while your arms and legs move — carrying shopping, lifting a child, getting up from the floor.
That's why a good core routine includes more than crunches:
- Anti-extension — resisting your lower back arching, like planks and dead bugs.
- Anti-rotation — resisting twisting, like side planks and pallof presses with a band.
- Flexion and rotation — controlled curling and twisting movements.
- Carries — walking while holding something heavy on one or both sides.
If crunches bother your neck or back, our 10-minute core routine without crunches covers four beginner-friendly alternatives.
Frequency depends on intensity
Think of core work on a scale:
- Light: bracing practice, bird dogs, a few slow dead bugs. Low fatigue, fine most days, and a good warm-up.
- Moderate: a 10- to 15-minute routine where the last reps of each set feel challenging. Two to three times a week.
- Hard: long holds, loaded or advanced exercises that leave your abs sore the next day. Two times a week is plenty, with recovery days in between.
If your core is still sore from the last session, it isn't ready for another hard one yet.
Three weekly schedules that work
If you're just starting
Two short sessions a week — for example Tuesday and Friday — of 10 minutes each. Add a minute of bracing practice on other days if you like.
If you already strength train
Add 5 to 10 minutes of core work to the end of your two or three strength sessions. Squats, lunges and carries already work your trunk, so you don't need separate core days.
If core is your focus for a few weeks
Three sessions a week on non-consecutive days, such as Monday, Wednesday and Friday. That's the structure of our free 4 Weeks to a Better Core program, which builds from foundational bracing in week one to harder variations by week four.
How long should a core workout be?
For most people, 10 to 15 minutes is enough. Three or four exercises, two or three sets each, done slowly and with control, will do more than 30 minutes of rushed reps. Quality matters more than volume here.
Signs you're doing too much
- Your abs are still sore when your next session comes around.
- Your form is slipping — lower back arching in planks, neck pulling in curls.
- Your lower back aches after core sessions.
- Workouts feel harder week to week instead of easier.
Any of these is a cue to add a rest day or lower the difficulty.
Common mistakes
- Daily high-rep crunches. Lots of reps of one exercise, every day, trains one pattern and leaves little room for recovery.
- Only training the front. Skipping side planks and back exercises leaves gaps.
- Chasing burn instead of control. Slow, steady reps are harder and safer than fast ones.
- Expecting core work to flatten your stomach. Core training builds strength; it doesn't burn fat from your midsection specifically.
- Never progressing. Once a routine feels easy, make it harder — longer holds, slower reps, or more challenging variations.
FAQ
Is it OK to do core exercises every day?
Light core work, such as bracing practice or a few slow dead bugs, is fine most days. Harder sessions are better spaced out, with at least a day of rest between them.
How many days a week should you do core workouts?
Two to three dedicated sessions a week works for most people. That covers the abdomen as part of the two days of muscle-strengthening activity in the CDC and NHS guidelines.
Should you rest between ab workouts?
Yes, after a demanding session. A full day's recovery between strength sessions is the NHS recommendation, and it applies to your core too.
How long does it take to strengthen your core?
Most people feel exercises getting easier within a few weeks of consistent training. That's your cue to progress them.
Do squats and deadlifts train your core?
They do work the muscles that keep your trunk steady, which is why people who strength train regularly need less dedicated core work. A few direct exercises still help fill the gaps.
Pick two days this week, keep each session to 10 minutes, and focus on slow, controlled reps. That's a core routine you can keep.
If floor work is what's stopping you
The Ab Machine — Full Body
A foldable ab trainer that uses a guided bottom-up rocking motion to work your core and waist, with an adjustable frame that folds flat for storage. Useful if getting down to the floor for crunches is the part you keep avoiding.
Explore the Ab Machine →Read more about it in the ab workout for people who hate crunches, or see how to start strength training at home to round out the rest of your week.