11.   The first method, an implant that slowly releases hormones into the blood stream, works much the same as the contraceptive pills used by women.

12.   The light impulses then go on to the pineal gland, stopping to release a hormone called melatonin.

13.   When we exercise normally, the body releases hormones such as cortisol and growth hormone to help cope with the stress.

14.   When the central brain encounters a frightening situation, it releases stress hormones that prepare the body to fight or flee, Gershon said.

15.   Oesterle said the next step will be to combine the laser holes with gene therapy, perhaps leaving behind genes that release hormones to trigger blood vessel growth.

16.   Some new versions release contraceptive hormones.