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Sleep problems in woman across the life cycle
editSleep problems in woman across the life cycle Subjective and objective data confirms women’s increased risk to suffer from sleeping problems of various kinds at different life stages.(1)(2)(3)(4)(5) Subjective and objective evidence supports the notion that various factors such as hormonal changes, ageing, psychosocial, physical and psychological as well as the presence of sleeping disorders may disturb women’s sleep.(1)(2)(3)(4)(5) Evidence from both subjective and objective measurements support the presence of disturbed sleep during the menstrual cycle, pregnancy, the postpartum period and the menopausal transition.(1)(2)(3)(4)(5) The relationship between sleep and women's psychological well‐being suggests that underlying causes of sleep disturbances across a woman's lifespan are often multi‐factorial.(1)(2)(3)(4)(5⟩ Sleep during the menstrual cycle Initial variations of sleep in women begin with the menstrual cycle.(2) However, most objective laboratory-based PSG measures of young healthy women do not confirm irregular sleep patterns, neither in sleep duration nor sleep quality across the menstrual cycle.(1) One exception is the reduction of REM sleep and markedly more so the increase of Stage 2 sleep during the luteal phase of the menstrual cycle.(1)(2) One actigraphy study reports a modest decline in Total Sleep Time of 25 min in late-reproductive woman during the premenstrual week.(1) The measurement of subjectively reported sleep during the menstrual cycle differs.(2) 70% of women report a negative impact on their sleep.(2) Furthermore, they report a decrease in sleep quality on 2.5 days each month.(2) Poor sleep quality, connected with poor mood and menstrual pain, especially during the premenstrual week, are most likely to be reported.(1) Psychological factors influencing sleep quality in women, related to hormonal fluctuations, such as mood disorders and sleep disorders are often higher in woman after the onset menarche.(2) Sleep during pregnancy An estimated 46% of women experience subjectively poor sleep during pregnancy, increasing progressively during pregnancy. (2) Reasons vary according to the trimester, relating to hormonal changes and physical discomfort(1): anatomic changes, sleep fragmentation, fragmentation of breathing, metabolic changes which might increase sleep disorders such as Restless Leg Syndrome, gastroesophageal reflux, increase in overnight sodium excretion, changes in the musculoskeletal system, nocturnal uterine contractions, changes in iron and folate metabolism, and changes in the circadian and homeostatic regulation of sleep.(2) First trimester Laboratory based studies show that most women experience more disruption during night-time sleep and become sleepier. They sleep on average more during this time compared to pre-pregnancy sleep time.(1)(2) Total Sleep Time, however, decreases as the pregnancy progresses.(5) Nocturia and Musculoskeletal discomfort account for the physiological factors impacting sleep during the first trimester.(2) Subjectively, women report an increase in night-time awakening and an increase in Total Sleep Time.(1) Pregnant women’s main physiological complaints during the first trimester which disrupt the quality of sleep are nausea and vomiting, urinary frequency, backaches, and feeling uncomfortable and fatigued; as well as tender breasts, headache, vaginal discharge, flatulence, constipation, shortness of breath, and heartburn.(1)(5) Other contributing factors for sleep quality are age, parity, mood disorders, anxiety and primary sleep disorders.(1) Second trimester Laboratory based measures during the second trimester show a further decrease in Total Sleep Time, Slow Wave Sleep and sleep quality.(1)(2) No changes in REM sleep have been observed.(1) Fetal movements, uterine contractions, Musculoskeletal discomfort and Rhinitis and nasal congestion account for the physiological factors which influence sleep.(2) Self-reported Total Sleep Time and quality decreases during the second trimester.(2) Reported contributing factors are fetal movements, heartburn, cramps or tingling in the legs, breathing problems, and anxiety.(1) Third trimester Objectively, Slow Wave Sleep and Total Sleep Time as well as general sleep quality decreases further progressively during the third trimester. (1)(2) More night-time awakenings are common.(1)(2) Sleep Onset Latency problems and napping becomes more frequent.(1) Physiological factors impacting sleep at this stage during the pregnancy are nocturia, fetal movement, uterine contractions, heartburn, orthopnea, leg cramps, rhinitis, nasal congestion, and sleeping position.(2) Women at the third trimester report progressively reduced Total Sleep Time, and similarly to the second trimester, being uncomfortable, feeling fetal movements, heartburn, frequent urination, cramps and respiratory difficulties.(1) The last weeks before delivery influence sleep quality reportedly most markedly.(1)It is, however, curious that in spite of virtually all women experiencing poor sleep, only one third consider themselves to have current sleep problems.(1) Postpartum Total Sleep Time is objectively the lowest during the 1 month postpartum, however, increasing normally steadily.(1) Main contributing factors influencing sleep during the postpartum period are infant behaviours such as infant sleep and feeding patterns, bed-sharing and infant temperament.(1)(2) It appears that Slow Wave Sleep is preserved during the first weeks postpartum in spite and because of chronic sleep deprivation.(1) Frequent napping occurs.(1) Recent studies suggest additionally a myriad of further contributing factors influencing postpartum sleep.(1)(2) It has been found that mulitparas sleep remained relatively stable while first time mothers experienced a decline in sleep efficiency.(3) Furthermore, mothers of bottle fed babies experienced less night time awakening than breast feeding mothers (1)(2). Parents general physical and psychological health should be considered as well, however by three months postpartum, mothers and infants sleep tend to stabilise and mothers sleep becomes more regular.(1)(2) Menopausal transition Poor sleep quality, sleep fragmentation and increased awakenings are common complaints during the menopausal transition. (1)(2)(3)(5) Reportedly, 31% to 42% of women suffer from chronic insomnia during their menopausal transition.(2) However, some objective PSG studies have not shown significant differences in sleep architecture in pre‐, peri‐, and postmenopausal women.(1)(2)(3)(5) Nonetheless, quantitative and qualitative studies report elevated beta activity, resulting objectively and subjectively in a consistent coupling of sleep disturbances such as sleep fragmentation, increased waking after sleep onset and poor sleep efficiency with vasomotor symptoms such as hot flashes.(1)(2)(3)(5) Besides vasomotor symptoms are changes in hormone levels such as estrogen, affective disorders, stress and perceived health, urinary problems, obesity, gastrointestinal problems, endocrine problems, and cardiovascular problems contributing factors to menopause’ associated sleeping problems and insomnia.(1)(2)(3)(4)(5) Sleep during the menopausal transition is furthermore influenced by pain disorders and specifically by comorbid physical and psychiatric conditions.(1)(2)(4) Other proposed causes for sleep problems during menopause are increased incidences of obstructive sleep apnea, increased sleep disordered breathing, and inadequate sleep hygiene.(4)(5) Another important factor contributing to changed sleep patterns in ageing women in general is the circadian disruption, showing in disturbed regulation of body temperature at sleep onset and early morning cortisol levels.(2) Postmenopausal women tend to express a morning chronotype.(2) These changes in chronotype compared to premenopausal women require a different sleep hygiene.(1)
References/Sources: (1)Margaret Moline, Lauren Broch, Rochelle Zak (2004) "Sleep Problems Across the Life Cycle in Women", Current Treatment Options in Neurology 2004, 6:319–330 Current Science Inc. ISSN 1092-8480 (2)Bei Bei, Soledad Coo, Fiona C. Baker, John Trinder (2015) "Sleep in Women: A Review"; https://doi.org/10.1111/ap.12095 (3)Martino F. Pengo, Christine H. Won, Ghada Bourjeily (2018). "Sleep in Women Across the Life Span" Published online 2018 Apr 19. doi: 10.1016/j.chest.2018.04.005 154(1): 196–206. (4)D. Ameratunga, J. Goldin, M. Hickey (2012) "Sleep disturbance in menopause" First published: 31 January 2012 https://doi.org/10.1111/j.1445-5994.2012.02723.x (5)Giulia Gava, Isabella Orsili, Stefania Alvisi, Ilaria Mancini, Renato Seracchioli and Maria Cristina Meriggiola (2019) "Review:Cognition, Mood and Sleep in Menopausal Transition: The Role of Menopause Hormone Therapy" published in medicina: Gynecology and Physiopathology of Human Reproduction, S. Orsola-Malpighi Hospital, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
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