The fight-or-flight reaction occurs even if a physical response to a stressor is unnecessary.

Key facts

  • Stress is a common and normal physical response to challenging or new situations.
  • Everyone experiences stress differently.
  • Stress can be a positive reaction when it helps to overcome challenges and motivate you.
  • Stress becomes problematic when it makes you feel overwhelmed or continues for a long time.
  • With the right relaxation techniques or professional help, the negative, long-term effects of stress can be prevented.

On this page

  • What is stress?
  • How do I know if I'm too stressed?
  • What are some common causes of stress?
  • How can I manage my stress?
  • When should I see my doctor?
  • How can I prevent stress?
  • What happens if I don't manage my stress?
  • Resources and support
  • Related information on Australian websites

What is stress?

Stress is a common and normal physical response to challenging or new situations. Stress has both mental and physical aspects. When you are stressed, your body releases stress hormones such as adrenaline. This brings on physical changes in your body, which help you respond to the stressful situation.

While everyone will feel stress at times, each person’s experience will be different. Knowing what makes you stressed and how you respond to different challenges in life will help you manage stressful periods.

The body’s stress response, also called the ‘fight or flight’ response, is a helpful way your body has adapted to respond to danger. When you experience episodes of stress you need the stress hormones your body releases to keep you alert and able to face challenges.

Stress becomes a problem when it lasts a long time, or if you feel overwhelmed and unable to cope with your situation. When this happens, it is time to take steps to manage your stress to ensure that you are able to function well at work and at home.

How do I know if I'm too stressed?

The key to stress management is finding the right balance between productive stress and stress that makes you feel overwhelmed and unproductive.

You can look out for physical signs of stress as well. Stress hormones such as adrenaline and cortisol are released by your body and cause your heart to beat faster and your breathing to quicken. Your stomach may feel uneasy, your muscles may tense up and your skin can become sensitive.

All of these are signs that your body is preparing for a ‘fight or flight’ situation. These feelings should pass soon after the stressful situation is over. If they don’t pass, it may be a sign that you are too stressed.

The point where stress is no longer productive is different for everyone, but you might look out for the following clues:

  • feeling overwhelmed or unable to cope
  • feeling ‘on edge’ or unable to stop worrying
  • changes in sleep patterns, feeling exhausted
  • changes in appetite
  • physical reactions such as headaches, muscle tension, upset stomach
  • difficulty concentrating
  • changes in mood, irritability, or anger
  • withdrawal from friends and family
  • reliance on alcohol or other substances to cope
  • thoughts of self-harm or suicide

CHECK YOUR SYMPTOMS — Use the anxiety, stress and depression Symptom Checker and find out if you need to seek medical help.

What are some common causes of stress?

Stress can be triggered by different life experiences, and everyone is stressed by different things, but common external causes of stress include:

  • major life events such as a death in the family or divorce
  • family illness or health problems
  • problems at work or school, financial issues or relationship worries

Sometimes internal stress can be brought on by anxiety, depression or self-criticism. Talking negatively about yourself and feeling as though you are never living up to your own or others’ expectations can be very stressful and can strain your mental and physical health.

The COVID-19 pandemic has been stressful and may also be impacting your mental health and wellbeing. Go here for steps on how to manage your mental health during this time.

How can I manage my stress?

Use your strengths and skills to make a positive plan to address the stressful events in your life and how you’re reacting to stress.

Whether your stress is internal or external, relaxation techniques can help you manage stress and boost your ability to cope. There are many different techniques, and it’s important you find the ones that work for you. Examples include slow breathing, progressive muscle relaxation, mindfulness, meditation, yoga, and exercise.

Read more here on relaxation techniques for stress relief.

A friend or family member can also be a great source of support, but at times you may feel you need help from a professional. Consider talking to a counsellor, psychologist or social worker who can work with you to identify the source of your stress and develop strategies to better manage it.

Psychologists and other therapists use a range of approaches to help manage stress and anxiety. One evidence-based approach is a technique known as cognitive behavior therapy (CBT) which is based on the idea that how you think and act affects how you feel.

Watch this video from This Way Up about ways to cope during stressful or difficult times.


When should I see my doctor?

If you have tried relaxation techniques and reaching out to someone you trust, but still feel overwhelmed, you can check in with your doctor or speak with a mental health professional.

Stress is not itself a diagnosis but rather a clue that something else is going on. Chronic stress could be a sign of depression, anxiety or a symptom of another mental health condition. GPs and psychologists are trained to know how to recognise when stress is a sign that you need extra support, so don’t hesitate to reach out for advice.

FIND A HEALTH SERVICE — The Service Finder can help you find doctors, pharmacies, hospitals and other health services.

ASK YOUR DOCTOR — Preparing for an appointment? Use the Question Builder for general tips on what to ask your GP or specialist.

How can I prevent stress?

It’s not always possible to prevent stress altogether — life can be stressful. If you remember that some stress can be positive and motivating, you can aim to find the right balance between productive stress and an unhelpful level of stress.

Making sure you have time to relax each day will also help prevent a build-up of tension in your body and your mind.

Daily exercise can have many benefits for your overall health and wellbeing, including reducing stress. Something as simple as going for a walk or taking part in a team sport can also improve your mental health and help prevent you from feeling stressed.

Spend time learning what triggers your stress and try to understand why this is. Structured problem solving is another form of psychological therapy that can help prevent your stress from escalating as you identify ways to solve the problems that trigger it.

What happens if I don't manage my stress?

It’s important not to leave your stress unmanaged because chronic stress may cause long-term health problems, including these physical symptoms:

Breathing

During stressful periods, rapid breathing sends more oxygen around the body. If you have an existing respiratory condition like asthma, this can make it harder for you to breathe. Faster breathing can also lead to hyperventilation and for some people, panic attacks.

Blood pressure

Stress causes your heart to beat faster than usual so it can pump more blood to your body organs and muscles. In the short term, this helps your body respond to stress, but it also raises your blood pressure. If you are experiencing long or frequent episodes of stress, high blood pressure can lead to heart problems.

Stomach (gut)

When you are stressed your body produces more glucose to give you extra energy. If this happens frequently it can put you at a greater risk of type 2 diabetes. The hormones adrenaline and cortisol are released by your body in response to stress, and can also give you an upset stomach or reflux when too much acid is produced.

Fertility and sexuality

Living with chronic stress leads to your mind and body feeling exhausted. This may reduce your desire for sex and can lead to fertility problems.

Muscles

Your muscles tense up from adrenaline in preparation for a ‘fight or flight’ response and to protect your body from a potential injury. After a stressful event, your muscles relax and your blood pressure returns to normal, but when stress becomes chronic your muscles may not have the chance to relax. This can cause back, neck and shoulder pain which can lead to headaches and body aches.

Immunity

When you are stressed, your body’s immune system is stimulated to help heal wounds or injuries. If you have long periods of stress, your immune system becomes fatigued, making you more vulnerable to infection and illness and to taking longer to recover.

Skin and hair

Stress hormones increase oil production which will make your skin more sensitive and oily and over time may cause acne or hair loss.

Resources and support

  • In an emergency call triple zero (000) and ask for an ambulance.
  • For crisis support call Lifeline 13 11 14.
  • For Beyond Blue’s support service call 1300 22 4636.

What stimulates fight

The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.

What happens physically during fight

Your heart rate and blood pressure increases. This means you're probably breathing more quickly and heavily, which is helping to move nutrients and oxygen out to your major muscle groups.

Is the fight

The fight, flight, or freeze response is how the body responds to perceived threats. It is involuntary and involves a number of physiological changes that help someone prepare to: fight, or take action to eliminate the danger.

What happens to the body when the fight

The SNS sends a signal through to the adrenal medulla, which responds by releasing the hormone adrenaline into the bloodstream. Adrenaline causes a number of physiological changes. The heart beats faster, pushing blood to the muscles, heart and other vital organs, and blood pressure increases.