Source: <https://psychologyforeveryone.com/chapter/7-stress-and-the-body/>

# Stress and the Body

*Alarm, fuel, and the bill : The body keeps the same books as the mind.*

## 7.1 What is stress?

Stress is the body and mind's response to any demand or threat, real
or perceived. The demand or threat is called a stressor. Stressors can
be external (exams, conflicts, financial problems, illness) or internal
(self-criticism, perfectionism, unresolved trauma, worry).

**Figure 7.1** *Some pressure helps performance; too
much harms it.*

Stress is not always bad. Short-term stress can help us perform (for
example, in sports, exams, or emergencies). Problems arise when stress
is too intense, too frequent, or too prolonged without adequate rest and
recovery.

## 7.2 The stress
response: fight, flight, freeze

When the brain perceives danger or high demand:

-

The hypothalamus activates the sympathetic nervous system.

-

The adrenal glands release adrenaline and noradrenaline.

-

Heart rate and breathing increase.

-

Blood pressure rises.

-

Blood sugar increases for energy.

-

Muscles tense.

-

Senses become sharper.

-

Digestion and non-urgent functions slow down.

This is the fight-or-flight response. In some situations, especially
when escape seems impossible, the body may respond with a freeze or
shutdown state (numbness, dissociation, feeling "stuck").

This system evolved to protect us from physical dangers (for example,
wild animals). In modern life, it often activates for psychological
stressors (emails, deadlines, arguments), which cannot be solved by
fighting or running.

## 7.3 The HPA axis and cortisol

For longer-lasting stress, the brain uses the
hypothalamus–pituitary–adrenal (HPA) axis:

**Figure 7.2** *The stress response from perception
to body.*

-

Hypothalamus releases CRH (corticotropin-releasing hormone).

-

Pituitary gland releases ACTH (adrenocorticotropic hormone).

-

Adrenal glands release cortisol, the main stress hormone.

Normal role of cortisol mobilises energy (increases blood sugar);
modulates immune function; helps maintain blood pressure; influences
sleep-wake cycle and mood.

Acute (short-term) cortisol rise: helpful for coping with immediate
challenges. Chronic (long-term) high cortisol: can damage physical and
mental health.

## 7.4 Effects of chronic stress

**Figure 7.3** *Where stress shows up in the
body.*

### Brain and mental health

Hippocampus (memory): chronic high cortisol can impair memory
formation and retrieval. Linked to difficulty concentrating and
forgetfulness.

Amygdala (fear centre): can become overactive, increasing anxiety,
fear responses, and emotional reactivity.

Prefrontal cortex (thinking and self-control): function can be
reduced, leading to poor decision-making, impulsivity, and difficulty
regulating emotions.

Mood and behaviour: increased risk of anxiety disorders, depression,
irritability, anger outbursts, and substance use as coping.

### Physical health

-

Cardiovascular: high blood pressure, increased heart rate, higher
risk of heart disease and stroke over time.

-

Metabolism: increased abdominal fat, insulin resistance, higher risk
of type 2 diabetes.

-

Immune system: initially activated, but chronic stress can weaken
immune response and increase infections.

-

Digestive: stomach pain, acidity, irritable bowel syndrome (IBS),
nausea, appetite changes.

-

Muscles and pain: muscle tension, headaches, back pain, body
aches.

-

Sleep: difficulty falling asleep, staying asleep, or non-restorative
sleep.

-

Reproductive: reduced libido, menstrual irregularities, fertility
issues, erectile difficulties.

Chronic stress is therefore a whole-body problem, not only a mental
one.

## 7.5 Types of stress

-

Acute stress: short-term (minutes to days). Example: exam, interview,
argument, near-accident. Often resolves once the situation ends.

-

Episodic acute stress: frequent episodes of acute stress. Common in
people with hectic lifestyles, constant deadlines, or high anxiety.

-

Chronic stress: long-term (weeks, months, years). Examples: ongoing
financial strain, abusive relationship, chronic illness, caregiving
burden, unsafe environment. Most damaging to health; often needs
structured support and changes.

-

Eustress (positive stress): challenging but manageable and meaningful
(training for a sport, preparing for a wedding, starting a wanted job).
Can enhance growth and performance.

-

Distress (negative stress): overwhelming, threatening, or
meaningless. More likely to harm health if prolonged.

## 7.6 Signs and symptoms

**Domain** | **Examples** |

Emotional | Irritability, anger, sadness, anxiety, feeling overwhelmed,
emotional numbness |
Cognitive | Worry, racing thoughts, poor concentration, forgetfulness,
indecisiveness, negative thinking |
Physical | Headache, muscle tension, fatigue, sleep problems, stomach issues,
palpitations, appetite changes |
Behavioural | Withdrawing, procrastination, more alcohol/tobacco/caffeine,
overworking, nail-biting, restlessness |

Not everyone experiences all symptoms. Patterns vary by person, age,
and culture.

## 7.7 Stress and mental
disorders

Chronic stress does not always cause a mental disorder, but it is a
major risk factor:

-

Anxiety disorders: ongoing stress can heighten vigilance and worry,
contributing to generalised anxiety, panic disorder, and social
anxiety.

-

Depression: chronic stress, especially with helplessness or lack of
support, can lead to or worsen depression.

-

PTSD: follows exposure to severe trauma (war, assault, accident,
disaster). Symptoms include flashbacks, nightmares, avoidance,
hypervigilance, and emotional numbness.

-

Substance use disorders: some people use alcohol, drugs, or smoking
to self-medicate stress, which can lead to dependence and worsen mental
health over time.

Early stress management can reduce the risk of these conditions
developing or becoming severe.

## 7.8 Level-wise impact

-

Mild: occasional pressure with adequate rest and support; challenging
but manageable; little impact on daily functioning.

-

Moderate: frequent stress affecting sleep, mood, or concentration;
some impact on work, study, or relationships; lifestyle changes and
counselling can be very helpful.

-

Severe: constant feeling of being overwhelmed; significant
impairment; possible anxiety or depression; needs therapy, possible
medical evaluation, and strong social support.

-

Emergency: suicidal thoughts, severe panic, inability to function, or
harmful substance use — immediate professional and possibly emergency
care.

## 7.9 Healthy ways to manage
stress

#### Body-based

-

Breathing exercises: slow, deep breathing (for example, 4 seconds in,
6 seconds out) activates the parasympathetic system.

-

Physical activity: walking, jogging, yoga, dancing, sports reduce
stress hormones and increase endorphins. Aim for regular movement most
days.

-

Progressive muscle relaxation: tensing and relaxing muscle groups
systematically.

-

Sleep: regular schedule, dark and quiet room, reduced evening
screens. Good sleep is one of the strongest stress buffers.

#### Mind-based

-

Cognitive reframing: notice catastrophic thoughts ("Everything is
ruined") and replace with balanced ones ("This is difficult, but I can
take one step at a time").

-

Mindfulness and meditation: attention to the present without harsh
judgement; can reduce rumination over time.

-

Prayer and spiritual practices: for many, faith, chanting, scripture,
and satsang (a supportive spiritual gathering) provide comfort, meaning,
and community.

#### Social and lifestyle

-

Social support: talking to trusted family or friends; joining groups
(sports, hobby, faith, support groups).

-

Time management: prioritising, breaking large tasks, saying no when
necessary.

-

Reducing stimulants: limiting excessive caffeine, nicotine, and
alcohol.

-

Professional help: counselling or therapy for persistent stress;
psychiatric evaluation if severe symptoms or substance dependence.

## 7.10 Unhealthy coping

-

Excessive alcohol, smoking, or drug use.

-

Overeating or severely restricting food.

-

Aggressive outbursts or violence.

-

Complete avoidance (skipping work, isolating for long periods).

-

Self-harm or risky behaviours.

These may give short-term relief but usually worsen stress, health,
and relationships over time. Recognising these patterns is a first step
toward change.

## 7.11 Common causes of stress

-

**Work or study:** heavy workload, job insecurity,
conflict, exams, perfectionism

-

**Money:** debt, low income, unexpected costs

-

**Relationships:** conflict, loneliness, separation,
caregiving

-

**Life changes:** moving, marriage, a new baby,
retirement, bereavement

-

**Health:** illness, pain, worry about disease

-

**Environment:** noise, crowding, unsafe neighbourhoods,
discrimination

-

**Information overload:** constant news and
notifications

-

**Inner pressure:** unrealistic standards, fear of
failure, constant self-criticism

## 7.12 Burnout

Burnout is a state of deep exhaustion that develops after a long
period of unmanaged work stress. The World Health Organisation describes
it as an “occupational phenomenon,” not a medical disease, with three
features:

1.

**Exhaustion:** feeling drained, energy gone.

2.

**Cynicism or distance:** feeling negative or detached
from the job, people, or tasks.

3.

**Reduced effectiveness:** feeling less capable and less
productive.

Burnout can affect anyone, but it is common in health care, teaching,
social work, caregiving, and any job with high demands and low control.
It overlaps with depression, and if symptoms are severe or last long,
professional assessment is important.

**WARNING**

Burnout rarely improves with a weekend off alone. Lasting recovery
usually needs changes: realistic workload, clearer boundaries, support
from managers, regular breaks, and sometimes treatment.

## 7.13 Stress versus anxiety

The two overlap, but there is a difference:

-

**Stress** is usually a response to an *identifiable
external pressure*, and it tends to fade when the pressure ends.

-

**Anxiety** is persistent worry or fear that often
continues even without an obvious cause and may involve fear of what
*might* happen.

Prolonged stress can lead to an anxiety disorder or depression. The
next two chapters explain these conditions.

## 7.14 Adjustment disorder

Sometimes a major life change, such as divorce, job loss or a serious
diagnosis, triggers stress reactions that are stronger or last longer
than expected and interfere with daily life. When symptoms appear within
about three months of the stressor and are out of proportion to it,
doctors may call this an *adjustment disorder*. It usually
improves with support, coping skills, and time, and sometimes with brief
therapy.

## 7.15 Thinking differently
about stress

Research suggests that our beliefs about stress matter. People who
see stress as purely harmful tend to feel worse than those who see it as
a sign the body is preparing to meet a challenge. Telling yourself “My
heart is pounding because my body is getting ready” can change your
experience from fear to readiness. This does not mean ignoring severe
stress; it means that the stress response itself is not your enemy.

A STORY FROM ORDINARY LIFE — MEERA, AGE 38

Meera worked long hours, cared for ageing parents, and managed the
household. She felt rushed and tense. She slept late, skipped meals, and
drank multiple cups of tea and coffee. Over time she developed
headaches, irritability, poor sleep, and frequent arguments. She
thought, "This is just my life; I have to tolerate it."

A friend suggested a counsellor. They named the main stressors and
the unhelpful coping (excess caffeine, no breaks, saying yes to
everything). Meera started 20-minute evening walks, breathing before
bed, one short break at work, sharing some responsibilities, and
reducing tea and coffee after noon.

Within weeks her sleep improved, headaches reduced, and she felt more
in control. She realised: "I cannot remove all stress, but I can change
how I respond and build support."

**7.16** **A simple story**

## 7.16 One companion verse

SHLOKA / VERSE

**Sanskrit Text:**

मात्रास्पर्शास्तु कौन्तेय शीतोष्णसुखदुःखदाः ।

आगमापायिनोऽनित्यास्तांस्तितिक्षस्व भारत ॥

**Pronunciation:**

*matra-sparsas tu kaunteya sitosna-sukha-duhkha-dah |*

*agamapayino 'nityas tams titiksasva bharata ||*

**Translation:** Contacts with the world give cold and
heat, pleasure and pain. They come and go; they are not lasting. Endure
them, O Bharata.

**Practical Meaning for Daily Health: Psychologists call this
"distress tolerance". Titiksha means sitting calmly with a hard feeling,
such as worry, anger or sadness, and letting it rise and fall without
panic.**

However, endurance does not mean punishing yourself.
*Titiksha* is about staying present while an emotional wave
passes; it is not a demand to become emotionally numb. Furthermore,
enduring pain does not mean you are forbidden from fixing the root of
the problem (like reducing a crushing email load at work or leaving a
bad environment). Finally, remember that enduring stress is physical
work. Your body's stress-response system (the HPA axis) burns heavy fuel
to get you through the day, meaning true endurance always requires deep,
physical sleep to recover.

*Reference — Bhagavad Gita 2.14*

### Reflection activity

1.

What are your top three stressors right now (work, family, finances,
health, studies)?

2.

How does stress usually show up in your body and behaviour (headache,
irritability, overeating, isolation)?

3.

Choose one healthy stress-management practice from this chapter. When
and how will you practise it this week?

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