Understanding Stress
Stress is a state of psychological and physiological tension that arises when demands placed on a person exceed their perceived capacity to cope. It is a normal human response to challenges and threats — the body's way of preparing to meet demands.
Acute stress — short-term stress in response to a specific challenge — is generally adaptive. It sharpens focus, increases energy, and motivates action. The problem arises when stress becomes chronic — persistent, ongoing, and unresolved — which has significant consequences for both mental and physical health.
The distinction between stress and anxiety is important. Stress is typically a response to an external stressor — a demand, deadline, or threat. Anxiety is a more internal state characterised by worry and apprehension that may persist even when no specific stressor is present. The two frequently co-occur and can be difficult to distinguish.
Understanding Burnout
Burnout is a syndrome resulting from chronic, unresolved stress — most commonly in occupational or caregiving contexts. The World Health Organization's ICD-11 defines burnout as an occupational phenomenon characterised by three dimensions:
- Emotional exhaustion: Feelings of energy depletion or exhaustion
- Depersonalisation (cynicism): Increased mental distance from one's job, or feelings of negativism or cynicism related to one's work
- Reduced personal accomplishment: Reduced professional efficacy — a sense that one is no longer effective or capable
Burnout is distinct from depression, though the two can co-occur and share features. Burnout is typically context-specific (related to work or a specific role), while depression is more pervasive. Burnout can contribute to the development of depression.
Symptoms of Chronic Stress and Burnout
Psychological Symptoms
- Persistent exhaustion that does not resolve with rest
- Difficulty concentrating or making decisions
- Irritability, frustration, and short temper
- Cynicism, detachment, or emotional numbness
- Reduced sense of effectiveness or accomplishment
- Feeling overwhelmed, helpless, or trapped
- Loss of motivation and enjoyment
- Anxiety and worry
Physical Symptoms
- Fatigue and low energy
- Sleep disturbance — difficulty falling or staying asleep, or sleeping excessively
- Headaches
- Gastrointestinal problems
- Muscle tension and pain
- Frequent illness — reflecting immune suppression
- Changes in appetite and weight
- Cardiovascular symptoms (palpitations, raised blood pressure)
Behavioural Symptoms
- Social withdrawal and isolation
- Reduced productivity and performance
- Procrastination and avoidance
- Increased use of alcohol, caffeine, or substances
- Neglect of personal needs and self-care
Causes and Risk Factors
Occupational Risk Factors
- High workload and time pressure
- Lack of control over work
- Insufficient recognition or reward
- Poor workplace relationships or conflict
- Lack of fairness
- Values mismatch — working in a role that conflicts with personal values
- Emotionally demanding work (healthcare, social work, emergency services)
Individual Risk Factors
- Perfectionism and high personal standards
- Difficulty setting boundaries
- Strong sense of responsibility and duty
- Limited social support
- Pre-existing anxiety or depression
- Poor sleep habits
South African Context
South Africa's social environment creates particular conditions for chronic stress. High rates of violent crime create a background of ongoing threat and hypervigilance. Economic inequality and unemployment create financial stress for millions of families. Healthcare workers, teachers, and social workers operate in under-resourced systems with extremely high demand — creating conditions for occupational burnout at a systemic level.
Load shedding (scheduled power outages) has added a significant additional stressor for South African households and businesses, with research suggesting measurable impacts on mental health and productivity.
The Physiology of Chronic Stress
Chronic stress activates the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system over extended periods. This produces sustained elevation of stress hormones — particularly cortisol — which has widespread effects on the body:
- Suppression of immune function
- Disruption of sleep architecture
- Impairment of memory and cognitive function
- Increased cardiovascular risk
- Metabolic dysregulation
- Structural changes in the brain, particularly in the hippocampus and prefrontal cortex
These physiological effects explain why chronic stress is associated with such a wide range of physical and mental health consequences.
When to Seek Professional Help
Seek professional help if:
- Stress or burnout is significantly impairing your ability to function
- You are experiencing symptoms of depression or anxiety
- You are using alcohol or substances to cope
- You are experiencing physical health symptoms related to stress
- You are having thoughts of self-harm
- Rest and time off are not providing relief
A GP is a good first point of contact and can assess whether there is an underlying condition and refer you to appropriate support. Under the National Health Act (Section 6), you have the right to be informed about your condition and to participate in decisions about your care.