41.   The target was a gene responsible for production of an enzyme needed to produce noradrenaline, which in turn is needed for the body to produce adrenaline.

42.   The theory is that women produce melatonin at night, and when melatonin is low the body produces more estrogen, which poses a cancer risk.

43.   They also discovered his body does not produce the right antibodies against infection.

44.   Therefore, increased exposure to sunlight does not increase the amount of activated vitamin D the body will produce.

45.   To avoid contact with the ground, they travel on a stream of slime their bodies produce.

46.   To cope with the rarefied atmosphere at high altitude, the body produces more oxygen-carrying red blood cells, which thicken the blood.

47.   Uric acid in the blood rises when the body produces too much or the kidneys do not eliminate enough, and deposits build up in and around the joints.

48.   Weak estrogens do not have the same actions as the strong hormones that the body produces.

49.   When inserted into Chinese hamster ovary cells, it can cause them to produce large quantities of a hormone very similar to the hormone the human body naturally produces.

50.   When people get older their bodies produce less of the natural enzymes, which causes tissue stress and the release of toxic chemical by-products.