Participants assigned to this arm will receive a Jin Shin Jyutsu®-based hand application intervention guided by the Transactional Model of Stress and Coping. The intervention includes an initial individual training session (approximately 30-40 minutes) providing education on stress, coping, and the principles of Jin Shin Jyutsu®, followed by a structured self-application protocol. Participants will practice the hand application daily for 14 consecutive days, for at least 15 minutes per day, and will be supported with reminder messages to enhance adherence. This intervention is designed as a supportive self-care approach rather than a medical treatment.

Participants assigned to this arm will receive standard informational counseling related to general health during perimenopause. This includes a brief verbal education session (approximately 10-15 minutes) covering perimenopause-related changes and general lifestyle recommendations, such as sleep hygiene, balanced nutrition, physical activity, and stress awareness. No Jin Shin Jyutsu® techniques or relaxation interventions will be provided during the study period. Outcome assessments will be conducted at the same time points as the experimental group.

Participants assigned to the control group will receive standard verbal health education related to general health during perimenopause. The content includes information on common perimenopausal changes and general lifestyle recommendations. No Jin Shin Jyutsu® techniques, relaxation exercises, or structured coping interventions are included.

This is a 24-question form designed by researchers to determine participants' sociodemographic characteristics, women's health status, general health knowledge, lifestyle, and support levels.

The Stress Coping Methods Scale (SBÇYÖ) is a self-report questionnaire assessing active and cognitive coping strategies used by adults when facing stressful situations. The scale consists of 21 items rated on a 5-point Likert scale (1-5) and includes five subdomains: logical analysis, positive reappraisal, problem solving, seeking professional support, and seeking environmental support. Total and subscale scores increase as the corresponding coping strategy is used more frequently. Higher scores indicate greater use of the specified coping strategy.

The Menopause-Specific Quality of Life Questionnaire - II (MENQOL / MÖYKÖ-II) is a validated self-report instrument developed to assess the presence and severity of menopause-related symptoms and their impact on quality of life across vasomotor, psychosocial, physical, and sexual domains.

The scale consists of 29 items. For each item, participants indicate whether the symptom is present; if present, the level of discomfort is rated. Item scores are converted to a 1-8 scoring system. The total score ranges from 29 to 232, with higher scores indicating worse quality of life and greater negative impact of menopausal symptoms.

The Distress Thermometer is a single-item visual analog scale designed to rapidly assess overall psychological distress. Participants rate their distress level on a scale ranging from 0 (no distress) to 10 (extreme distress).

Higher scores indicate higher levels of psychological distress. In this study, the problem list accompanying the Distress Thermometer is not used.