How Often Should You Do Cardio Each Week?

Most adults should do cardio three to five days a week, with the bulk of it easy and no more than one or two sessions hard. The federal physical activity guidelines call for at least 150 minutes of moderate activity a week, and spreading that across several days feels better than cramming it into a weekend. Your goal shifts the number up or down from there. A free consultation can turn the range into a week you can keep.

The range by goal

Goal	Cardio days	Typical mix
General health	3 to 5	Walks, bike, easy sessions
Build muscle	2 to 3	Easy, after lifting or on off days
Lose weight	3 to 5	Mostly easy, one interval day
Prepare for a race	4 to 6	Easy base, one tempo or interval day
Heart rate and blood pressure support	3 to 5	As directed by your physician

If you are building toward a longer goal, our guide to cardio versus weights for weight loss shows how to balance it with lifting.

What counts as a cardio day

Anything that raises breathing for 10 minutes or more: a brisk walk on the Monon Greenway, a bike ride, a rower session, a climber workout or an incline treadmill. Easy days should feel like you could talk comfortably, and hard days should leave you unable to. Walking counts, and the page on whether walking is enough explains when it needs support.

Busy-week minimums

When the week collapses, keep a floor: three 20 minute sessions, or a brisk 10 minute walk after each of three meals. That keeps the habit and the base, and you can rebuild next week. A missed week hurts less than a month of quitting.

Signs you are doing too much

• Strength numbers dropping for two weeks in a row.
• Resting heart rate running higher than usual on waking.
• Sleep getting worse after hard days.
• Persistent soreness in tendons or joints.

If these appear, drop to three easy days and review rest with the rest days guide.

Fitting cardio around lifting

If you lift three days a week, place easy cardio after the weights or on the off days, and keep hard cardio on days that do not follow a heavy leg session. Two lifting days and three cardio days is a common balance for people who want both. If time is tight, an easy 20 minute walk after dinner adds up without costing any recovery, and it helps sleep and digestion too.

A sample week

Monday: lift, then 10 minutes easy on a bike. Tuesday: 40 minute zone 2 walk or ride. Wednesday: lift. Thursday: 20 minute intervals if you recover well, otherwise another easy session. Friday: lift. Saturday: a long easy outing, such as a trail walk. Sunday: rest or a gentle stroll. Swap days to suit your calendar, and keep the pattern of hard, easy, easy.

When to check in first

If you have heart disease, high blood pressure, diabetes or joint concerns, or are restarting after a long break, ask a physician what is appropriate before reaching five days. After that, a coach can fit the schedule to your lifting, your commute and your joints. The free consultation in Carmel includes an InBody scan and a plain talk about which week you can really keep.