Mental health 1994
Why Zebras Don’t Get Ulcers
- General, the track now showing
- #26
- ADHD
- #38
The best popular account of what chronic stress physically does to a body, written by a working scientist who flags his own uncertainty. Explains the link between mind and disease without any of the wellness-industry overreach.
The chapter guide
The acute stress response protects a body in immediate danger, but repeated psychological activation creates cumulative wear across the body and brain, while coping depends on matching control, predictability, outlets, and support to the stressor.
Chapter 1: Why Don’t Zebras Get Ulcers?
An acute stress response is adaptive during immediate physical danger, while chronic activation by anticipated psychological threats produces damaging allostatic load.
Chapter 2: Glands, Gooseflesh, and Hormones
The sympathetic nervous system and hormonal cascades coordinate the body’s varied responses to different kinds of stressors.
Chapter 3: Stroke, Heart Attacks, and Voodoo Death
Repeated cardiovascular activation can damage blood vessels, promote atherosclerosis, and increase the risk of hypertension, stroke, and heart disease.
Chapter 4: Stress, Metabolism, and Liquidating Your Assets
Stress mobilizes stored energy for immediate use, while chronic mobilization and impaired storage regulation contribute to metabolic disease.
Chapter 5: Ulcers, the Runs, and Hot Fudge Sundaes
Stress alters digestion, appetite, and gastrointestinal function, interacting with pathogens and individual vulnerability rather than single-handedly causing every ulcer or bowel disorder.
Chapter 6: Dwarfism and the Importance of Mothers
Prolonged stress can suppress growth, and early caregiving conditions can shape stress physiology and development.
Chapter 7: Sex and Reproduction
Stress can disrupt reproductive hormones, fertility, sexual function, pregnancy, and lactation because reproduction is deferred during threat.
Chapter 8: Immunity, Stress, and Disease
Acute stress can briefly redistribute immune activity, while chronic stress can suppress or dysregulate it, though links from stress to specific human diseases require careful causal evidence.
Chapter 9: Stress and Pain
Stress can either suppress or intensify pain depending on duration, context, expectation, and the pain system involved.
Chapter 10: Stress and Memory
Brief stress can sharpen memory, while severe or prolonged stress can impair retrieval, damage hippocampal function, and interfere with forming new memories.
Chapter 11: Stress and a Good Night’s Sleep
Stress fragments restorative sleep, and sleep deprivation activates stress systems, creating a self-reinforcing cycle.
Chapter 12: Aging and Death
Lifetime stress exposure may accelerate aspects of bodily and brain aging, although aging outcomes vary greatly between individuals.
Chapter 13: Why Is Psychological Stress Stressful?
Psychological stress intensifies when events feel uncontrollable, unpredictable, worsening, unsupported, or without a safe outlet, but each factor helps only in the right context.
Chapter 14: Stress and Depression
Major depression emerges from interacting biological vulnerability, stress history, cognition, and environment, with stress acting as a risk factor rather than a complete explanation.
Chapter 15: Personality, Temperament, and Their Stress-Related Consequences
Temperament and traits such as hostility, anxiety, repression, and perceived control can alter stress exposure and disease risk, with evidence varying by construct.
Chapter 16: Junkies, Adrenaline Junkies, and Pleasure
Stress interacts with dopamine, reward, novelty, and loss of control in ways that can promote addiction or make uncertainty pleasurable when it remains bounded and benign.
Chapter 17: The View from the Bottom
Low socioeconomic status, inequality, limited control, and weak social capital create chronic stress exposures that contribute to health gradients.
Chapter 18: Managing Stress
Stress management works by choosing context-appropriate combinations of exercise, relaxation, limited control, useful predictability, safe outlets, social support, and professional help rather than relying on one universal cure.
Scorecard
- Universality
- 5 of 5
- Evidence
- 4 of 5
- Reread value
- 3 of 5