Hormone replacement therapy (HRT ) is medication that contains female hormones, and is sometimes taken by women to replace the oestrogen that the body stops making during menopause.
The medication is most often used to treat common menopausal symptoms, including hot flashes and vaginal discomfort.
British researchers who tracked more than 5,400 women with Covid-19 during the first half of 2020 reported that those who received the supplement were 78% less likely to die within six months of catching the virus.