Oestrogens and Psychological Well-being

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Abstract
The last decade has seen increased interest in the role of hormones, including oestrogens, not only in regulating growth, sexual development and reproduction but in maintaining a sense of psychological well-being. Episodes of change in oestrogen levels, whether increasing or decreasing, are high-risk periods for the emergence of psychological symptoms in some women. This may be due to a 'kindling effect' for women with previous psychological disturbance, an effect on circadian rhythm activity and therefore altered neurovegetative functions, or an effect on central rhythmic functioning between the hypothalamus and the cerebral cortex, all mediated by effects on neurotransmitter systems. Data supporting these hypotheses come from animal studies as well as converging research in several areas including the study of psychological side-effects of oral contraceptives, the study of mood and cognitive disturbances related to the menstrual cycle, the studies of states of hormonal change such as pregnancy and the menopause and, of course, studies of women with psychiatric disorders such as major depression, seasonal affective disorder and dementia. Improvement in such symptoms via hormonal therapies or other interventions will probably lead to better quality of life for women and may actually impede the deterioration associated with ageing and certain medical illnesses. Current data support a relationship between oestrogen and psychological well-being.