Stress is part of everyone's life. It is the body's natural response to demands and change, and it helps us make an effort, focus and react to danger. Moderate stress can be useful, but when tension becomes constant, it starts to wear down both body and mind. Understanding how stress works helps us cope with it better.
Stress is the body's response to a situation that requires us to adapt. Acute stress is short-term: the body mobilises quickly, the heart beats faster and the senses sharpen so we can deal with the task. When the danger passes, the body calms down. Chronic stress develops when tension lasts for weeks or months without recovery. It is long-term stress that harms health the most, because the body never gets a chance to rest.
Long-term stress shows itself in many ways. It is worth paying attention if these signs persist:
Coping means supporting the recovery of body and mind and dealing with the sources of tension:
Stress also shows up in specific areas of life. If your tension is mainly linked to long-term exhaustion, take a look at our page on burnout and stress.
Stress is not just an unpleasant feeling but a complex physiological process in which the body prepares to act. When the brain perceives a threat or a demand, it sends a signal to the adrenal glands, which release stress hormones into the blood, mainly adrenaline and cortisol. Adrenaline speeds up the heart rate and breathing and directs energy to the muscles, while cortisol keeps the body on alert for longer. This is often called the "fight or flight" response.
This mechanism developed over thousands of years and saved our ancestors' lives. The problem is that the body reacts in the same way to physical danger and to modern sources of strain: a deadline, a bill or a difficult conversation. When the stress response is triggered day after day and never gets a chance to settle, cortisol levels stay high. This explains why long-term stress disturbs sleep, weakens the immune system and puts a strain on the heart and blood vessels.
It is important to know that the body needs time to recover from stress. After a tense period, the nervous system does not switch straight into rest mode: recovery is a process that can be consciously supported. That is why the disappearance of the source of stress is often not enough on its own; the body also needs active calming and support to regain its balance.
Stress is not always caused by one big event. Tension often builds up from many smaller sources that seem bearable one by one but together become a burden. Sources of stress can broadly be divided into external and internal.
External sources of stress come from the environment and life changes:
Internal sources of stress are linked to our own way of thinking and our expectations. Perfectionism, constant self-criticism, difficulty saying no and the wish to manage everything alone can keep the body in a state of tension even when there is no external pressure. This is why two people in the same situation often experience stress very differently: what matters is not only what happens, but also how we perceive and interpret it.
Stress tolerance, or resilience, is not an inborn trait that you either have or do not have. It can be developed steadily by creating structures in your life that help you cope better with tension and recover faster. Unlike momentary relief, building resilience focuses on preventing tension from building up to a harmful level.
Long-term resilience is supported above all by consistent habits:
If you feel that despite your efforts the stress does not ease and starts to affect your health, mood or relationships, this is not a sign of weakness but a signal that your body and mind need more support. A psychologist can help you map the causes of stress, notice habits that deepen tension and learn new, sustainable ways of coping. Every person's story of stress is different, and the solutions can be very personal too.
Stress and sleep are closely linked and affect each other in both directions. A tense day leaves the body activated in the evening too, which makes it hard to fall asleep or leads to broken sleep. Short and poor-quality sleep in turn reduces the body's ability to cope with stress, which easily creates a vicious circle: stress disturbs sleep and lack of sleep deepens stress.
To break this circle, it helps to relax body and mind right before bedtime. Simple, consistent habits are useful:
If sleep problems persist even after you have improved your habits, it is worth taking them seriously: long-term lack of sleep is both a consequence of stress and a health risk in its own right. In that case, it helps to map the causes together with a specialist who can tell whether the sleep disturbance is mainly caused by stress or whether the sleep problem needs separate attention.
At Heaolu Keskus, you can talk about stress with, for example, these psychologists:
Kaidi Kõiv 🇬🇧 🇪🇪
Merilin Maiorov 🇪🇪 🇬🇧
Brita-Stiina Sarv 🇬🇧 🇪🇪
Ilona Laasma 🇷🇺 🇬🇧