Sleep Disturbances in Midlife Women

Sleep disturbances are among the most prevalent and impactful complaints encountered by women in midlife, encompassing the perimenopausal and early postmenopausal years. A constellation of physiological, hormonal and psychosocial factors underlies these disturbances. Declining levels of ovarian hormones, notably oestradiol and progesterone, contribute to the emergence of vasomotor symptoms such as hot flushes and night sweats, which fragment nocturnal rest. Circadian rhythm shifts, mood disorders and comorbid medical conditions, including obstructive sleep apnoea and restless legs syndrome, further exacerbate difficulties in both sleep initiation and maintenance. Polysomnographic studies characterise these disturbances by prolonged sleep latency, reduced sleep efficiency and diminished slow-wave sleep, often accompanied by alterations in rapid eye movement (REM) architecture. The global burden of midlife sleep disruption extends beyond immediate fatigue, implicating increased risk of cardiovascular disease, impaired cognitive function and mood dysregulation. Effective management strategies range from cognitive behavioural approaches and lifestyle modifications to hormonal therapies and nutritional supplementation, tailored to the heterogeneous needs of this population.

Research from Nature Portfolio

Recent studies have highlighted the cardiovascular implications of sleep disorder in menopausal women. Investigations employing self-reported sleep quality indices alongside measures of arterial stiffness demonstrate that women in the peri- and postmenopausal transition with poor sleep exhibit markedly increased arterial stiffness, independent of traditional cardiovascular risk factors. These findings underscore sleep disturbance as a valuable predictor of vascular ageing and emphasise the need for integrated strategies to mitigate both sleep and cardiovascular risk in midlife women.

Sleep Disturbances in Midlife Women publication trend

The graph below shows the total number of articles in sleep disturbances in midlife women across all publications each year (not limited to Nature Index journals).

Technical terms

Insomnia: Difficulty initiating or maintaining sleep with associated daytime impairment.

Sleep latency: The interval between lights-out and the onset of sleep.

Sleep efficiency: Percentage of time spent asleep relative to total time in bed.

Slow-wave sleep: Deep stages of non-REM sleep important for restoration and memory consolidation.

Vasomotor symptoms: Episodes of hot flushes and night sweats resulting from hormonal fluctuations.

Polysomnography: Comprehensive overnight recording of physiological variables to assess sleep architecture.

Entorhinal cortex: Medial temporal lobe region critical for memory and navigation, often affected by neurodegenerative processes.

References

1. Nutritional interventions in treating menopause-related sleep disturbances: a systematic review. Nutrition Reviews (2023).
2. Effect of Vitamin E Supplementation on Chronic Insomnia Disorder in Postmenopausal Women: A Prospective, Double-Blinded Randomized Controlled Trial. Nutrients (2023).
3. Disturbed sleep is associated with reduced verbal episodic memory and entorhinal cortex volume in younger middle-aged women with risk-reducing early ovarian removal. Frontiers in Endocrinology (2023).
4. Vasomotor and physical menopausal symptoms are associated with sleep quality. PLOS ONE (2018).
5. Sleep disorder, an independent risk associated with arterial stiffness in menopause. Scientific Reports (2017).
6. Role of Ovarian Hormones in the Modulation of Sleep in Females Across the Adult Lifespan. Endocrinology (2020).