Seizures and Collapse

Seizures are caused by abnormal brain function that results in the loss of consciousness. This loss is accompanied by generalized muscle activity such as running movements of the legs and contractions of the neck and head muscles.

Causes of seizures include:

epilepsy
distemper
rabies
parasites
tentaus
toxins
heart disease
brain tumors

Collapse with a loss of consciousness can be caused by:

a sudden decrease in blood or glucose supply to the brain
accumulation of waste products affecting the brain
metabolic disorders that affect blood levels of calcium
diabetes