ALZHEIMERS

Usual onset Over 65 years old[4]

Duration Long term[2]

Causes Poorly understood[1]

Risk factors Genetics, head injuries, clinical depression, hypertension,[1] psychological stress,[5] lack of physical[6] and mental[5][7] exercise

Diagnostic method Based on symptoms and cognitive testing after ruling out other possible causes[8]

Differential diagnosis Normal brain aging,[1] Lewy body dementia,[9] Trisomy 21[10]

Medication Acetylcholinesterase inhibitors, NMDA receptor antagonists[11]

Prognosis 100% mortality, life expectancy 3–12 years[11][12][13]

Frequency 50 million (2020)[14]