Ovaries removal increases risk of mental decline
Removal of a woman's ovaries increases the risk of mental decline in older age, a study has found.
The procedure, which triggers a "surgical menopause", is most often carried out on younger women because of cancer.
Scientists studied 1,837 women aged between 53 and 100, a third of whom had experienced a surgical menopause.
The women showed that having a surgical menopause was associated with faster declines in thinking ability and certain kinds of memory.