A CONTRACEPTIVE ring could make life easier for women worried about the
hormone levels in their pill—or those who simply forget to take it.
The device, a flexible plastic ring just over 5 centimetres in diameter and 4
millimetres wide, is folded and inserted into the vagina once a month. The ring
springs back into shape around the cervix and releases hormones over the next
three weeks until a period is due. These hormones stop eggs from maturing and
being released, and thicken cervical mucus to make it tough for sperm to get
through. The inventors say you don’t…
