Sassarini, J and Lumsden, 2015. M.A. Oestrogen replacement in postmenopausal women. Age and Ageing. U.S.A. Oxford Academics https://academic.oup.com/ageing/article/44/4/551/67014 [Accessed 18th March 2021].
, Bromberger, J.T. and Kravitz, H.M. 2012. Mood and Menopause: Findings from the Study of Women’s Health Across the Nation (SWAN) over ten years. HHS Public Access. U.S.A. P.M.C. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3197240/ [Accessed 18th March 2021].
 Avis, N.E. 2015. Duration of Menopausal Vasomotor Symptoms Over the Menopause Transition. HHS Public Access. U.S.A. P.M.C. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4433164/ [Accessed 18th March 2021].
 NHS. 2019. Risks: Hormone Replacement Therapy. https://www.nhs.uk/conditions/hormone-replacement-therapy-hrt/risks/ [Accessed March 19th 2021].
 Feeley, K and Wells, M. 2001. Hormone replacement therapy and the endometrium. Journal of Clinical Pathology. U.S.A. P.M.C. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1731456/ [Accessed March 18th 2021].
 Van Sumeran. 2000. Weight gain and hormone replacement therapy: are women's fears justified? PubMed.gov. U.S.A. N.I.H. https://pubmed.ncbi.nlm.nih.gov/10759058/ [Accessed 18th March 2021].
 Mishra, M, et al. 2011. Exercise beyond menopause: Dos and Don’ts. Journal of Midlife Health. U.S.A. P.M.C. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3296386/ [Accessed 18th March 2021].
 Dunneram, Y, et al. 2018. Dietary intake and age at natural menopause: results from the UK Women’s Cohort Study. Journal of Epidemiology and Community Health. U.K. B.M.J. https://jech.bmj.com/content/72/8/733 [Accessed 18th March 2021].
 Ilankoon, I.M.P.S. et all. 2021. Menopause is a natural stage of aging: a qualitative study. B.M.C. Women’s Health. U.S.A. B.M.C. https://bmcwomenshealth.biomedcentral.com/articles/10.1186/s12905-020-01164-6 [Accessed 18th March].
 NHS. 2018. Treatment: Menopause. https://www.nhs.uk/conditions/menopause/treatment/ [Accessed 18th March 2021].