Information is located at Chemical Element: lead.

He could lead if he would get the lead out.

1. An electrode placed o a part of the body and connected to an electrocardiograph.
2. A record, made by the electrocardiograph, which varies with the site of the electrode.

A pair of terminals that measures the potential differences resulting from cerebral activities between two points on the skull.

A diseased cerebral condition ranging from cognitive impairment in children to peripheral neuropathy in adults: While occupational exposure among workers at smelters or battery recycling plants remains an occasional problem, the greatest public health problem at the present time is exsure of young children to decaying fragments of leaded paint which can cause lead encephalopathy.

1. Constant resistance to a passive movement of a limb throughout the entire range of movement, as when trying to bend a lead pipe.
2. The generalized nervous disorder marked by symptoms of trembling limbs and muscular rigidity as seen in parkinsonism (a syndrome similar to Parkinson disease; for example, as a side effect of an antipsychotic drug).

Parkinson disease: a slowly progressive neurologic disease characterized by a fixed unexpressive face, a tremor (shaking) when at rest, slowing of voluntary movements, walking with short fast steps, a peculiar posture and muscle weakness, caused by degeneration of an area of the brain called the basal ganglia, and by low production of the neurotransmitter dopamine.

Most patients are over fifty, but at least ten percent are under forty. It is also known as paralysis agitans and shaking palsy.