Some may occur in the brain, causing a stroke, or in the heart, causing a heart attack.

Occurs when the blood flow to the brain is blocked and oxygen cannot get to the brain causing cells in the brain to die.

Once the voluntary signal to defecate is sent back from the brain, the abdominal muscles contract (straining) causing the intra-abdominal pressure to increase.

Instead, it is the workings inside our brains causing us to attribute meaningless stimuli to ghostly activity.

The disease attacks the animal's brain, causing the animal to become emaciated and lose bodily functions.

Eventually, the larvae completely devour the ant's brain, causing it to do nothing but wander aimlessly for approximately two weeks.

In some cases, surgery to remove the part of the brain causing the seizures may be used.

This enables it to penetrate deep into the brain causing little damage.

This is because of their ability to create products, phrases and ideas that disseminate the population triggering a response within the brain causing a cultural phenomena.

However, it rapidly permeates the brain often causing drowsiness.