Study finds 96 percent of former NFL players had brain disease

The video discusses a study revealing that 87 out of 91 former NFL players tested had chronic traumatic encephalopathy (CTE), a brain disease linked to repetitive head trauma. CTE can be detected through brain scans but confirmed only after death. The disease progresses through stages, causing symptoms like rage, depression, confusion, memory loss, and eventually dementia. A $1 billion settlement was approved between the NFL and former players affected by CTE.

What is the primary cause of chronic traumatic encephalopathy (CTE) according to researchers?

• Genetic predisposition

• Repetitive head trauma

• Viral infection

• Nutritional deficiency

Which protein is associated with the development of CTE in the brain?

• Alpha-synuclein

• Amyloid beta

• Tau

• Prion

What symptoms might individuals experience during stage two of CTE?

• Hallucinations

• Loss of appetite

• Rage and impulsivity

• Severe headaches

What marks the fourth stage of CTE?

• Loss of appetite

• Hallucinations

• Dementia

• Severe headaches

What was the outcome of the legal case involving the NFL and former players regarding CTE?

• The case was dismissed

• A $500 million settlement

• A $1 billion settlement

• No settlement was reached