Physiological Measures of Stress

Psychological Methods of Stress Management: CBT and SIT

Psychological approaches to stress management target the cognitive appraisals, maladaptive beliefs, and behavioural responses that generate and maintain the stress experience. They operate at the level of meaning — changing how stressors are interpreted — rather than directly suppressing physiological arousal. The most evidence-based psychological interventions are cognitive-behavioural stress management and Stress Inoculation Training (SIT).

Cognitive-Behavioural Stress Management (CBSM)

CBSM adapts standard cognitive-behavioural therapy principles for stress. Core elements include: identifying maladaptive stress-related cognitions — catastrophising ('this is a disaster'), all-or-nothing thinking, and overgeneralisation from single stressful events; cognitive restructuring — challenging these cognitions using Socratic questioning and behavioural experiments; behavioural activation — re-engaging with rewarding activities disrupted by stress; and relaxation training — progressive muscle relaxation, diaphragmatic breathing, guided imagery — as a direct physiological counter to the fight-or-flight response.

CBSM has been evaluated in a range of stress-related conditions including work stress, caregiver stress, chronic illness adjustment, and anxiety disorders. Meichenbaum and Deffenbacher (1988) found that cognitive-behavioural approaches to stress management were superior to relaxation alone, and both were superior to no treatment — suggesting that the cognitive component adds to physiological relaxation.

Stress Inoculation Training (Meichenbaum, 1977)

Donald Meichenbaum (1977) developed Stress Inoculation Training as a comprehensive, proactive approach to building stress resilience — analogous to physical inoculation, in which mild exposure to a pathogen builds immunity. SIT involves three phases:

Phase 1 — Conceptualisation: the therapist and client collaboratively explore the nature of the client's stress experience — how they appraise stressors, what their typical coping responses are, and what maintains their stress. The key goal is to help the client reconceptualise their stress as a problem that is understandable and manageable through specific skills. This 'normalising and demystifying' phase builds therapeutic alliance and motivation.

Phase 2 — Skills Acquisition and Rehearsal: the client learns and practises a range of coping skills: relaxation and mindfulness; problem-solving; cognitive restructuring (developing coping self-statements: 'I can handle this'; 'One step at a time'); communication and social skills; and time management. Skills are initially rehearsed in imaginal (imagined) and behavioural role-play situations, progressing to low-threat real-world applications.

Phase 3 — Application and Follow-Through: the client applies their coping skills to progressively challenging real-world stressors, beginning with manageable demands and building towards their most significant stressors. Progress is reviewed; coping approaches are generalised to new situations; and a relapse prevention plan is developed. The process is iterative — insights from application feed back into conceptualisation.

Evidence and Evaluation

SIT has been evaluated across a range of clinical and non-clinical populations — including medical patients, athletes, military personnel, and workers under occupational stress. Meta-analyses generally confirm moderate to large effect sizes for SIT compared with control conditions on measures of anxiety, performance, and physiological stress markers. Meichenbaum himself conducted numerous trials demonstrating the superiority of SIT over waiting-list controls and over single-component interventions. The approach is particularly valued because it is proactive (building resilience before stress occurs), teaches transferable skills, and addresses multiple levels (cognition, emotion, behaviour) simultaneously.

Limitations: SIT requires multiple sessions (typically 8–15) with a trained therapist, making it resource-intensive and not accessible for all. It requires significant client motivation and cognitive engagement — not suitable for acutely ill or severely cognitively impaired individuals. Effect sizes, whilst positive, are variable across studies and populations.