How Much Exercise Do You Need, and How Should You Recover?

Health guidelines recommend at least 150 to 300 minutes of moderate aerobic activity per week plus muscle-strengthening on two or more days. Progress comes from training followed by adequate recovery, and sleep, food and easy days do much of the work.

The weekly baseline

The WHO guidelines advise adults to accumulate 150 to 300 minutes of moderate-intensity activity (or 75 to 150 minutes vigorous) each week, plus strength work for major muscle groups on at least two days. Any amount is better than none, and benefits rise with more activity up to a point.

Mix easy and hard

Observations of endurance athletes show most training time spent at low intensity, with a smaller portion hard. This pattern is often called polarized or 80/20. The zone 2 cardio page explains how to find and use that low-intensity zone.

Strength training

Resistance training two to three times a week supports muscle, bone and metabolic health. Progressive overload, doing slightly more over time, drives gains. Protein intake spread through the day and adequate total calories support recovery. Creatine is a studied supplement for strength work; see creatine dosing.

Recovery fundamentals

Ranked roughly by importance:

1. Sleep: most adults need seven or more hours. See the complete sleep guide.
2. Nutrition: enough energy, protein and carbohydrate for the work you do.
3. Load management: planned easy days or deload weeks.
4. Passive methods: sauna, massage, cold water and similar tools are optional extras.

Heat and cold for recovery

The evidence for these tools is modest and mixed. Sauna may reduce perceived soreness, and cold water may do so as well but could blunt strength adaptations when used right after lifting. See the sauna protocol for details.

What the research says

Guidelines are based on large observational studies and trials linking activity to lower risks of cardiovascular disease and early death. Evidence on specific recovery gadgets is weaker, with small studies and subjective outcomes. Treat them as comfort measures, not core strategy.

Warning signs

Persistent fatigue, declining performance, elevated resting heart rate, poor sleep or recurrent illness can indicate under-recovery. Chest pain, fainting or unusual breathlessness warrant medical attention. This content is general information, not medical advice.

To put this together, a simple week might include two or three strength sessions, two or three easy aerobic sessions, one optional harder interval session, and at least one genuinely easy day. Increase total volume gradually, often suggested at no more than about 10 percent per week, and plan a lighter week every few weeks. Warm up before harder sessions, and treat sharp or persistent pain differently from ordinary muscle soreness. The best plan is the one you can sustain for years, so adjust it around work, sleep and life stress rather than treating it as fixed. Individual factors matter. Age, training history, injuries and health status all change what is appropriate, so beginners should start well below these ceilings and build up patiently over several weeks, ideally with guidance from a qualified coach.