Q.What is burnout?

Stress: Psychological Effects

You already know what stress feels like. The racing heart before an exam, the tight chest before a result, the irritability when you haven't slept enough. That's the experience of stress. But what does stress do to your mind over time? That's the psychological side.

The Intuition: Your Mind Under Load

Think of your mind like a rubber band. A little stretch — a deadline, a challenge — keeps it taut and responsive. That's eustress, the good kind. It sharpens focus, boosts memory, and pushes you to perform.

But pull too hard, or keep the band stretched for too long, and something changes. The band doesn't snap back. It stays deformed, loses elasticity, or eventually breaks. That's distress — chronic, overwhelming stress. And the psychological effects are the ways your mind deforms under that prolonged load.

The Precise Statement

Stress psychological effects refer to the measurable changes in cognition, emotion, and behaviour that occur when an individual perceives that environmental demands exceed their coping resources.

This isn't just "feeling bad." It's a cascade of specific, observable changes:

Cognitive effects — your thinking machinery slows down. Concentration fragments. Memory retrieval becomes unreliable (you blank on answers you knew). Decision-making becomes impulsive or paralysed. You might ruminate, replaying the same worry on a loop.

Emotional effects — the dominant mood shifts. Irritability spikes (small things feel huge). Anxiety becomes background noise. A sense of helplessness creeps in — the feeling that nothing you do matters. In prolonged cases, this can deepen into depression.

Behavioural effects — you start avoiding things. Procrastination worsens. Social withdrawal happens (you cancel plans, stop talking). Sleep gets disrupted — either too much or too little. Appetite changes. You might rely on caffeine, sugar, or other crutches just to get through the day.

The Mechanism (Why This Happens)

Your brain has a stress-response system — the HPA axis (hypothalamus-pituitary-adrenal). In acute stress, it releases cortisol, which sharpens alertness and suppresses non-essential functions (digestion, growth, reproduction). Good for a short sprint. …

The Intuition: Your Body's Alarm System

Think about the last time you had a genuinely stressful day — maybe an exam you hadn't prepared for, a sudden deadline, or a confrontation. Your heart pounded, your palms got sweaty, your breathing quickened. That's your body's emergency response kicking in. But what happens if that stress doesn't go away? What if the exam stress lasts for weeks, or the deadline keeps getting extended?

Your body can't stay in full emergency mode forever. It would exhaust itself. So it goes through a predictable three-stage process to cope with prolonged stress. That process is what Hans Selye called the General Adaptation Syndrome (GAS) .

The Precise Statement

General Adaptation Syndrome is a three-stage physiological response that the body undergoes when exposed to stress — any stress, whether physical (injury, cold), psychological (anxiety, pressure), or social (conflict). The three stages are:

1. Alarm Reaction
2. Resistance
3. Exhaustion

Let's walk through each one.

Stage 1: Alarm Reaction

This is the immediate "fight-or-flight" response. When you first encounter a stressor, your hypothalamus activates the sympathetic nervous system. Adrenaline and noradrenaline surge. Your heart rate and blood pressure rise, pupils dilate, digestion slows, and blood is diverted to muscles.

At this point, your resistance to the stressor is actually below normal for a brief moment (the shock phase), then shoots up above normal as the body fights back.

Stage 2: Resistance

If the stressor persists beyond the initial alarm, the body cannot maintain the full fight-or-flight state. It settles into a resistance stage. Here, the body adapts to the ongoing stressor. The initial dramatic symptoms (racing heart, sweating) subside. Hormone levels — particularly cortisol from the adrenal cortex — remain elevated, but the body appears to function normally.

This stage can last for days, weeks, or even months. The body is essentially running on a "war economy" — it works, but at a cost.

Stage 3: Exhaustion

The body's resources are finite. If the stressor continues long enough, the body can no longer sustain the resistance stage. The elevated cortisol levels, the constant metabolic demand, the diverted energy — it all takes a toll. The body enters exhaustion.

In this stage, the body's ability to resist the stressor collapses. The symptoms of the alarm reaction may reappear, but now the body cannot mount an effective response. This is where stress-related illnesses emerge: ulcers, hypertension, weakened immune function, and in extreme cases, organ failure or death. …