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.
The hormonal IUDs are 99.1-99.9 percent effective, while ParaGard is 99.2-99.4 percent effective. Meaning... that out of every 100 women who these IUDs in one year, less than one will become pregnant with typical use as well as with perfect use. Although these numbers are very promising, IUDs are not foolproof.