What stress is
Stress is the reaction of body and mind to demands that feel challenging or threatening. The stress response releases adrenaline and cortisol, raising heart rate, breathing and alertness, preparing the body to act. Once the demand passes, the body should return to balance.
Acute stress
Acute stress is the most common type. It is short-lived and linked to a specific event, such as an exam, a presentation or a sudden scare. Symptoms include a racing heart, sweating, muscle tension and a feeling of urgency. In small doses it can improve performance.
Episodic acute stress
Episodic acute stress happens when acute stress becomes a frequent pattern. People who take on too much, are always rushing or tend to worry may live in a near-constant state of crisis. Common signs are irritability, tension headaches, migraines, high blood pressure and chest discomfort.
Chronic stress
Chronic stress continues over weeks, months or years. It often comes from situations that feel hard to escape: money problems, an unhappy relationship, long-term caring, insecure work or illness. Because the stress response stays switched on, it can affect almost every system in the body.
See caregiver stress.
Eustress: positive stress
Eustress is stress we experience as positive and motivating, such as preparing for a wedding, starting a new job or taking on a sporting challenge. It feels exciting rather than threatening, is usually short-term and can build confidence and resilience.
Distress: negative stress
Distress is stress that feels unpleasant, overwhelming or beyond our ability to cope. The same event can be eustress for one person and distress for another, depending on resources, support and how it is perceived.
Traumatic stress
Traumatic stress follows events that threaten life or safety, such as accidents, violence, disasters or sudden loss. Symptoms such as flashbacks, nightmares, avoidance and hypervigilance in the first month may be acute stress disorder; if they persist, post-traumatic stress disorder may develop.
Types of stress by source
- Work stress: workload, lack of control, conflict, job insecurity.
- Relationship stress: conflict, separation, loneliness.
- Financial stress: debt, income loss, rising costs.
- Physical stress: illness, injury, pain, lack of sleep.
- Environmental stress: noise, crowding, unsafe housing.
- Life transitions: moving, becoming a parent, retirement.
Effects on the body
- Headaches and muscle tension.
- Digestive problems such as indigestion or bowel changes.
- Poor sleep and fatigue.
- Raised blood pressure and heart rate.
- Lowered immunity and more frequent infections.
- Changes in appetite and weight.
Effects on mood and behaviour
- Irritability and feeling overwhelmed.
- Anxiety and racing thoughts.
- Low mood and loss of motivation.
- Difficulty concentrating.
- Withdrawing from others.
- Using alcohol, smoking or food to cope.
See emotional exhaustion and burnout.
Managing acute stress
- Slow breathing: in for 4, out for 6.
- Grounding techniques to come back to the present.
- A short walk or physical movement.
- Breaking the task into small steps.
Managing chronic stress
- Identify the main sources and what can be changed.
- Set limits and learn to say no.
- Protect sleep and regular meals.
- Exercise regularly.
- Build social support and talk to people you trust.
- Schedule time for rest and enjoyable activities.
Psychological support
Cognitive behavioural therapy, mindfulness-based stress reduction and problem-solving therapy help people change unhelpful thinking patterns and cope with demands. Trauma-focused therapies help with traumatic stress.
See therapy for burnout.
When to seek help
- Stress affects work, relationships or daily life for weeks.
- Persistent anxiety, low mood or panic attacks.
- Using alcohol or drugs to cope.
- Physical symptoms such as chest pain: see a doctor.
- Thoughts of self-harm or suicide: seek urgent help.
Key points to remember
- Stress can be acute, episodic, chronic, positive or traumatic.
- Short-term stress can help; chronic stress harms health.
- Different types need different strategies.
- Therapy helps when stress is overwhelming or persistent.
Questions about types of stress
These answers are general information and do not replace an examination or individual medical advice.
What are the main types of stress?
Acute, episodic acute, chronic, eustress, distress and traumatic stress.
What is the most harmful type of stress?
Chronic and traumatic stress have the greatest impact on health.
What is eustress?
Positive, motivating stress, such as preparing for an exciting event.
Is acute stress bad?
Not usually; short bursts can improve focus and performance.
How do I know if my stress is chronic?
It lasts weeks or months and affects sleep, mood and health.
Can stress cause physical symptoms?
Yes, such as headaches, stomach problems and muscle tension.
What is episodic acute stress?
Frequent bouts of acute stress, often in overloaded or worried people.
Is stress the same as anxiety?
No; stress is a response to pressure, anxiety can persist without a clear trigger.
Can exercise reduce stress?
Yes, regular activity lowers stress hormones and improves mood.
When should I see a professional about stress?
If it lasts weeks, affects daily life or causes thoughts of self-harm.
Sources
This guide is for general information and does not replace medical advice. How a problem is diagnosed and treated depends on your examination and medical history. If you think you have an emergency, contact your local emergency services.