What Is Stress and Selye's Model

Stress is one of the most common modern problems. Schools are stressful environments by their nature: many people, complex relationships, high stakes, finite time. A school head needs to understand stress, both in herself and in her staff, to manage it well.

A working definition

Several definitions combine into a clear working picture.

• Stress is the reaction people produce to excessive pressures or demands placed upon them. It arises when they worry that they cannot cope.
• It is the body’s reaction to a change that requires a physical, mental, or emotional adjustment.
• It is a state of psychological or physiological imbalance resulting from the disparity between situational demand and the individual’s ability or motivation to meet that demand.

Three things to notice.

1. Stress is a reaction. It is not the demand itself; it is the response to the demand.
2. The disparity matters. Stress arises when demands exceed the person’s perceived ability to meet them.
3. It is both psychological and physiological. Stress affects the mind and the body together.

The simple formula

A memorable formula: stress occurs when the pressure is greater than the resource. S = P > R.

The formula is useful. Stress is the imbalance between pressure and resources. Two ways to reduce stress:

1. Reduce the pressure. Fewer demands, smaller demands, more time.
2. Increase the resources. More capability, more support, more rest.

Most stress reduction efforts focus on the first (reduce pressure). Many people forget the second (build resources). A school head dealing with stressed staff should consider both directions.

A 20th-century syndrome

Stress is often termed a twentieth-century syndrome, born of humanity’s race towards modern progress and its complexities.

This is not entirely accurate; humans have always experienced stress. But the modern world has changed the kinds of stress and the pace of change. Constant connectivity, fast-changing technology, high competitive pressure, and layers of complexity produce stress that earlier generations did not face in the same way.

Schools sit fully inside this. A teacher’s job has more complexity, more parental scrutiny, more technological change, and more accountability than her predecessor’s job a generation ago. The base level of stress in the profession has risen.

Hans Selye’s three-stage model

Hans Selye (1907-1982), a Hungarian endocrinologist, was the first to give a scientific explanation for stress. His General Adaptation Syndrome describes three stages of biological response to a stressor.

Stage 1: Alarm

The “fight or flight” response prepares the body for immediate action. The sympathetic nervous system activates. Adrenaline releases into the bloodstream to meet the threat or danger. The body’s resources mobilise.

The first response. The body sees a threat (real or perceived) and prepares to deal with it. Heart rate rises. Adrenaline pumps. The person becomes alert, ready to act.

This is the response humans evolved for facing immediate physical dangers. It still kicks in for modern dangers (a deadline, a difficult parent, a child’s emergency), even when there is nothing to fight or flee from physically.

The alarm response is healthy when the stressor is brief. The body activates, deals with the situation, and returns to normal.

Stage 2: Resistance

If the source persists, the body prepares for longer-term protection, secreting hormones that raise blood sugar levels. Resistance is common and not necessarily harmful, but it must include periods of relaxation and rest to counterbalance the stress response.

The stressor has not gone away. The body shifts from short-burst alarm to sustained resistance. Hormones keep pumping. Blood sugar stays elevated.

This is where chronic stress lives. The person can function in resistance mode for extended periods. She can work, teach, manage. But the body is not in its normal state.

A person in resistance can sustain it when she has regular periods of rest and recovery. Without those, she moves towards stage 3.

Stage 3: Exhaustion

If the stressor continues beyond the body’s capacity, the organism exhausts its emotional, physical, and mental resources. The body experiences adrenal exhaustion, lesser stress tolerance, and becomes susceptible to disease, collapse, or even death.

The body’s resources are depleted. The person can no longer sustain the response. Collapse.

This is the danger zone. Burnout. Serious illness. Mental health crisis. Schools see this in teachers who appear to have been functioning for years and then suddenly cannot. The capacity ran out.

What Selye’s model means for school management

Three practical implications.

Recognise the stages

A school head should be able to recognise where her staff (and herself) are on the stages.

1. Alarm. Sharp short-term stress. Approaching deadline, difficult meeting. Healthy.
2. Resistance. Sustained stress over weeks or months. Heavy term, ongoing difficult situation. Workable but needs recovery.
3. Exhaustion. Past the body’s capacity. Burnout, illness, breakdown. Critical.

Different stages need different interventions.

Build recovery time

The emphasis on rest matters. Resistance is sustainable only with rest. A school that runs teachers from one stressful period directly into another without recovery moves them toward exhaustion.

A school head should think deliberately about recovery cycles. Term breaks. Weekends free of work demands. Time for staff to take leave when needed. These are not soft considerations; they are how the school sustains its capacity.

Watch for the warning signs of exhaustion

Common signs of approaching exhaustion in teachers:

1. Persistent fatigue that does not improve with normal rest.
2. Increased absences.
3. Withdrawal from collegial interactions.
4. Cynicism about the work.
5. Errors in work that was previously reliable.
6. Physical symptoms (headaches, sleep problems, frequent illness).
7. Emotional flatness.

A school head who catches these signs early can intervene with reduced workload, time off, support. A school head who misses them sees the eventual collapse.

Pressure and resources in a school

The S = P > R formula maps onto school life.

Pressures common in schools

1. Heavy teaching loads. Many classes, large class sizes.
2. Marking volume. Endless papers to mark.
3. Parent expectations. Sometimes unreasonable.
4. Student behaviour. Difficult students, large groups.
5. Administrative demands. Reports, meetings, paperwork.
6. Examination pressure. Especially around boards.
7. Career uncertainty. Contract renewals, promotion competition.
8. Personal life pressures. Family, health, finances.

Resources teachers draw on

1. Skill. Capability built over time.
2. Support. Colleagues, family, friends.
3. Recovery time. Sleep, weekends, breaks.
4. Autonomy. Control over how to work.
5. Recognition. Seeing that the work matters.
6. Resources. Materials, technology, equipment to do the job.
7. Health. Physical and mental wellbeing.

A school head can think systematically: where are pressures rising? Where are resources thinning? The intervention follows from the diagnosis.

Flashcard

What is stress, and what are the three stages of Selye's General Adaptation Syndrome?

Tap to reveal

Answer

Stress is the imbalance between pressure and resources. S = P > R.

Selye’s three stages: alarm (fight-or-flight, sharp short-term, healthy when brief), resistance (sustained response with regular rest), and exhaustion (resources depleted, burnout, the danger zone). Two ways to reduce stress: lower the pressure or build the resources.