Credit Green Bay Packers . In essence, the system is a complex grid of retractable arms lined with hundreds of greenhouse-type light bulbs. After a trial run in 2010, the Packers bought nine MU360 units, as they are called, enough to cover half the field.
IUD Progesterone. An Intra-Uterine Device (IUD) is a small, flexible, plastic device placed inside a womanâs uterus. Mirena is the brand-name for a type of IUD that releases synthetic progesterone hormone into a womanâs body. The IUD makes it harder for sperm and eggs to move, or for a fertilized egg to lodge in the uterus. It is 99.8% effective in preventing pregnancy, making it slightly more effective than sterilization.
A hormonal IUD should not be used by women who: 1  Are, or think they may be, pregnant. 2  Have abnormal vaginal bleeding that has not been explained. 3  Have untreated cervical or uterine cancer. 4  Have, or may have, breast cancer. 5  Have abnormalities of the cervix or uterus. 6  Have had pelvic inflammatory disease within the past 3 months.