Chronic Stress

What chronic stress does to the body

When you face a threat, the brain triggers the stress response: the sympathetic nervous system releases adrenaline, and the hypothalamic-pituitary-adrenal (HPA) axis raises cortisol. Heart rate, blood pressure, blood sugar and alertness rise. This is helpful in short bursts.

With chronic stress, the system keeps firing. The cumulative wear and tear is called allostatic load. Effects include:

Symptoms of chronic stress

Physical

• tiredness that rest does not fix
• headaches and muscle tension
• palpitations or a racing heart
• stomach upset, diarrhea or constipation
• frequent infections
• changes in appetite and weight
• teeth grinding and jaw pain

Emotional and mental

• irritability, short temper and impatience
• feeling overwhelmed, worried or on edge
• low mood or loss of enjoyment
• poor concentration and forgetfulness
• racing thoughts, especially at night

Behavioral

• poor sleep
• withdrawing from friends and activities
• more alcohol, smoking, caffeine or comfort eating
• procrastination and difficulty making decisions

Common causes

• Work: high demands with little control, long hours, job insecurity, conflict, burnout
• Money: debt, unemployment, housing insecurity
• Caregiving for a child with special needs, a partner or an older parent. See caregiver stress.
• Health: chronic illness, pain or disability in yourself or a family member
• Relationships: ongoing conflict, separation, loneliness
• Social factors: discrimination, unsafe neighborhoods, isolation
• Past trauma, which can make the stress response more reactive

Chronic stress vs anxiety and depression

Stress is a response to external pressures and usually eases when they lift. Anxiety disorders involve persistent worry or fear that continues even without a clear stressor or is out of proportion. Depression involves low mood or loss of interest for at least 2 weeks with other symptoms. Chronic stress raises the risk of both, and they often overlap. If symptoms continue after the stressor has gone, or are severe, see a doctor.

How it is assessed

There is no single test for chronic stress. A primary care doctor will ask about your stressors, symptoms, sleep, mood, alcohol and drug use, and how you are coping. They may use questionnaires to screen for anxiety and depression, check blood pressure, and do blood tests (such as thyroid function, blood count and blood sugar) to rule out medical causes of fatigue and palpitations.

How to reduce chronic stress

Look after the basics

• Exercise: 150 minutes of moderate activity a week lowers stress hormones and improves mood and sleep. Even a 10-minute walk helps.
• Sleep: keep regular sleep and wake times, limit screens before bed and avoid caffeine after midday.
• Eat regularly and limit alcohol, which worsens sleep and anxiety.

Calm the stress response

• Slow breathing: breathe in for 4 seconds and out for 6 seconds for 5 minutes.
• Mindfulness and meditation programs reduce stress and anxiety in studies.
• Progressive muscle relaxation, yoga or tai chi.
• Time in nature and hobbies that absorb your attention.

Tackle the sources

• List your stressors and sort them into those you can change and those you cannot.
• Problem-solve one manageable step at a time.
• Set boundaries at work and learn to say no.
• Ask for practical help with caregiving, finances or housing.

Stay connected

Talking to friends, family, faith communities or support groups reduces the impact of stress.

Professional help

• Cognitive behavioral therapy (CBT) and stress management programs teach skills to change unhelpful thinking and coping.
• Treatment of anxiety, depression or insomnia with therapy and, if needed, medicine.
• Employee assistance programs often offer free confidential counseling.

Frequently asked questions

What are the signs of chronic stress?

Common signs are constant tiredness, poor sleep, headaches, muscle tension, irritability, difficulty concentrating, worry, stomach problems, frequent infections and changes in appetite. People often withdraw socially or rely more on alcohol, caffeine or comfort food.

What does chronic stress do to the body?

Long-term stress keeps adrenaline and cortisol raised, which increases blood pressure, inflammation and blood sugar, disturbs sleep and digestion, and weakens immunity. Over years it raises the risk of heart disease, stroke, type 2 diabetes, depression and anxiety.

How do I get rid of chronic stress?

Combine regular exercise, consistent sleep, relaxation practices such as slow breathing or mindfulness, social support and practical steps to reduce the sources of stress. If stress persists or affects your mood and daily life, cognitive behavioral therapy and medical help are effective.

Can chronic stress cause physical illness?

Yes. Chronic stress contributes to high blood pressure, heart disease, tension headaches, irritable bowel syndrome flares, skin conditions and frequent infections. It also makes chronic pain worse. New physical symptoms should still be checked by a doctor rather than assumed to be stress.

Is chronic stress the same as burnout?

They are related. Burnout is a form of chronic work-related stress, marked by exhaustion, cynicism or detachment from work, and a sense of reduced effectiveness. Chronic stress is broader and can come from any area of life.