A new study has suggested that hormone replacement therapy could help arrest the progression of Alzheimer's disease.
Women are more prone to Alzheimer's and other forms of dementia in old age, and a team led by Michael Craig, has been investigating the possibility of a link between cognitive decline and female hormones.
The research contends that the female hormone oestrogen has a protective effect on the brain, preventing the development of beta-amyloid plaques and that the risk of dementia rises after the menopause - something which could affect life insurance in future.
Dr Craig told the Times: "There is growing evidence to support a theory that there is a critical window when you hit the menopause.
"If you have HRT at the time of menopause, it may confer significant protection, but if you don't start it until ten years afterwards the damage may be done."
A 2002 study by the Womens Health Initiative in the USA rejected the benefits of hormone replacement therapy.
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