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1 day ago · Alzheimer's disease ( AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2] [15] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation ...
1 day ago · Muhammad [a] ( / moʊˈhɑːməd /; Arabic: مُحَمَّد, romanized : Muḥammad [mʊˈħæm.mæd]; c. 570 – 8 June 632 CE) [b] was an Arab religious, social, and political leader and the founder of Islam. [c] According to Islamic doctrine, he was a prophet divinely inspired to preach and confirm the monotheistic teachings of Adam ...
