Most people who exercise regularly will tell you it helps them feel calmer. Science has spent decades testing that impression, and the picture that has emerged is more interesting than “a run clears your head”. Physical activity appears to change how the body reacts to stress itself, not only how we feel in the hour after a workout.
This article looks at what researchers have found, why the effect seems to work, and how people in a busy city such as Amsterdam fit training into ordinary weeks.
How stress works in the body
When we face a threat, real or imagined, the body activates two linked systems. The sympathetic nervous system raises heart rate and blood pressure within seconds. More slowly, the hypothalamic-pituitary-adrenal (HPA) axis releases cortisol, a hormone that mobilises energy.
This response is useful in short bursts. The trouble begins when it stays switched on for weeks, which is common with work pressure, money worries or a difficult move. Chronic activation is linked to poor sleep, low mood and a higher risk of cardiovascular problems.
What exercise does to the stress response
Exercise is itself a physical stressor. It raises heart rate and cortisol for a while. One leading explanation for its benefits, sometimes called the cross-stressor adaptation idea, is that repeatedly practising this controlled stress trains the body to recover faster. Studies comparing fitter and less fit people have often found that fitter individuals show a smaller or shorter physiological reaction to psychological stress tests, although results vary between studies.
Exercise also affects the brain directly. Animal research shows that physical activity supports the growth of new connections in the hippocampus, a region involved in memory and in switching off the stress response. In humans, aerobic training has been linked to changes in brain regions involved in emotion regulation.
There are simpler effects too. Exercise improves sleep for many people, and better sleep reduces stress sensitivity. Training with others adds social contact, which is protective in its own right.
What the evidence says about mood
Large reviews of controlled trials have found that exercise reduces symptoms of anxiety and depression compared with no treatment, with walking, jogging, strength training and yoga all showing benefits. Effects tend to be strongest when people stick with an activity for several weeks.
That last point matters. The most effective exercise is the one you will keep doing. Intensity seems less important than regularity, which is good news for anyone who does not enjoy hard training.
How much is enough?
The World Health Organization advises adults to get at least 150 to 300 minutes of moderate activity, or 75 to 150 minutes of vigorous activity, each week, plus muscle-strengthening activities on two or more days. Dutch national guidelines follow a similar pattern and stress that activity should be spread across the week.
You do not need to reach these numbers on day one. Even a brisk daily walk is a meaningful start, and short sessions add up.
How Amsterdammers fit training in
Amsterdam has an advantage that many cities lack: a large share of daily travel happens by bike. Cycling to work or school counts as moderate activity, and many residents meet a good part of the weekly guideline without thinking of it as exercise.
Parks fill the rest of the gap. Early morning runners are a familiar sight in the Vondelpark, the Westerpark and the Amsterdamse Bos, and outdoor bootcamp groups meet in parks across the city.
For people who prefer guidance, personal trainers offer structure and accountability. Coach Milo, based on the Overtoom in Oud-West a short walk from the Vondelpark, is a personal trainer, ACT coach and breathwork expert who combines fitness, psychology and breathwork to help clients get stronger physically and mentally. That mix reflects the research above: movement and stress management work well together.
Others prefer the variety of a large sports centre. Sportcentrum Ookmeer in Amsterdam Nieuw-West is a major multi-sport venue with a sports hall, an indoor athletics hall and a hall for top-level gymnastics, making it a base for club sport as well as individual training.
If you are new to the city and weighing up options, this guide to finding a gym in Amsterdam explains the main types of gyms and what to look for before signing a contract.
Practical tips from the research
- Anchor exercise to routines you already have. A ride to work, a walk at lunch or a session straight after work is easier to keep than a plan that depends on motivation.
- Mix aerobic and strength work. Both have been linked to better mood, and variety helps people stay with it.
- Use stressful weeks as a reason to move, not a reason to skip. Even a short session can lower tension in the moment.
- Train with others when you can. Social contact adds its own buffer against stress.
- Be patient. Most studies find the clearest benefits after several weeks of regular activity.
The bottom line
Exercise is not a cure for every kind of stress, and it does not replace professional help when stress becomes overwhelming. But the evidence is consistent that regular movement makes the body and brain more resilient. In a city built for bikes and parks, the easiest way to start is often the one right outside your door.