Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Colour blindness.
A deaf baby attempting to sign.
Evaluating the Physical Characteristics of Urine
Changes in Land Configuration and Surface Characteristics
Characteristics of Subatomic Particles
A human pedigree of the X-linked color-blindness trait