Strength training: why every adult needs it and how to start

In short

• CDC recommends muscle-strengthening activity on at least 2 days a week, working all major muscle groups.
• Strength work helps increase or maintain muscle mass and strength.
• Older adults benefit from adding balance work, which helps lower the risk of falls.
• You can start at any age, at home, with body weight, bands or light weights.
• Build up gradually; steady progress matters more than hard effort.

What strength training does

WHO states that muscle strengthening benefits everyone, and it lists lower risks of high blood pressure, type 2 diabetes, falls and early death among the benefits of regular physical activity. CDC adds that activity can lower blood pressure, help control blood sugar in people with type 2 diabetes, protect bones, joints and muscles as you age and lower the risk of hip fracture.

• Muscle: lifting weights and similar exercise help increase or maintain muscle mass and strength.
• Blood pressure and blood sugar: regular activity can improve both.
• Bones and joints: staying active helps protect them as you age.
• Balance and falls: a mix of activities, including balance exercises, improves physical function and lowers the risk of falls in older adults.
• Mood and sleep: activity can improve mood and help you sleep better.

WHO also reports that people who are not active enough have a 20 to 30 percent higher risk of death than people who are. Strength is what lets you rise from a chair without using your hands, climb stairs or catch yourself if you trip.

How much you need

1. How oftenAt least 2 days a week, in addition to aerobic activity such as brisk walking (CDC suggests at least 150 minutes a week).
2. Which musclesAll the major groups: legs, hips, back, abdomen, chest, shoulders and arms.
3. SetsA set is typically 8 to 12 repetitions. One set is the minimum, and two or three sets bring more benefit.
4. EffortWork to the point where you could not do another repetition without help.
5. RecoveryGive a muscle group a day between sessions, so the work has time to pay off.

A session of 30 to 45 minutes can cover the whole body. Lack of time is usually about priorities rather than a real limit.

Simple exercises to start with

You do not need a gym. Lifting weights, resistance bands, body-weight exercises such as push-ups, and some yoga poses all count. NHS suggests easy home options that mostly use a sturdy chair for support.

• Sit-to-stand from a chair and mini-squats for the legs.
• Calf raises, and sideways or backward leg lifts.
• Wall press-ups, which you can progress to a bench or the floor.
• Biceps curls with light weights, such as filled water bottles.
• Bands, light dumbbells or body-weight moves for the back, hips and abdomen.

Wear loose clothing, keep water nearby and use a stable chair with your feet flat on the floor.

How to progress without injury

• Start gently, and build up slowly, adding repetitions over time.
• Make an exercise harder gradually, for example by doing a sit-to-stand more slowly or calf raises without chair support.
• Keep a short log of the exercise, the weight, the sets and the repetitions, so you can see progress.
• Change one thing at a time: do not raise the weight and the volume together.
• After a break, restart with a lighter load and build back up over a few weeks.
• Mild muscle soreness a day or two later is common; sharp pain during a movement is not.

Strength after 65

CDC's guidance for adults 65 and older is the same weekly strength target as for younger adults, plus balance work such as standing on one foot. Adults with chronic conditions or disabilities are also advised to work all major muscle groups on at least 2 days a week, as their abilities allow. Start with a clinician or qualified trainer if you have joint or balance problems, and check with your provider before starting if you have a long-term condition.

Safety with health conditions

• Heart disease or uncontrolled high blood pressure: get your provider's approval and advice first.
• Diabetes: ask your provider whether your medicine plan needs adjusting around exercise.
• Joint pain or arthritis: pick a comfortable range of motion and stop if pain is sharp.
• Recent surgery or injury: wait for clearance and follow your care team's plan.
• Pregnancy: ask your provider which exercises suit you.

Breathe out as you lift and avoid holding your breath through the effort.

Red flags and when to see a doctor

Red flags: stop and call 911 for chest pain or pressure, severe shortness of breath, dizziness or a feeling of faintness, an irregular heartbeat, a sudden severe headache, or trouble speaking or seeing during exercise.

See your primary care provider for sharp joint or back pain during a movement, pain that does not settle in a few days, a swollen joint, numbness or weakness in a limb, or dark urine after very hard exercise. If you have heart disease, uncontrolled blood pressure, a recent operation or marked bone thinning, speak to your provider before you begin.

Questions for your provider

• Are there any limits on strength exercise for me?
• Do I need a check before starting?
• Which movements should I avoid with my condition?
• How should I handle my blood pressure or medicines around exercise?
• Who can teach me proper form?

Questions and answers

Sources

1. WHO — Physical activity fact sheet
2. CDC — Adult Activity: An Overview
3. CDC — Physical Activity Basics: guidelines
4. CDC — What counts as physical activity for adults
5. CDC — Benefits of physical activity
6. NHS — Strength exercises

Sources checked on 29 October 2026.