أرذل العمر : Perception and meaningsQuran had described which resembles what today we call Alzheimer's disease
Quran e Majeed had informed mankind, 1400 years back, as follows:سَنُرِيهِمْ آيَاتِنَا فِي ٱلآفَاقِ وَفِيۤ أَنفُسِهِمْ حَتَّىٰ يَتَبَيَّنَ لَهُمْ أَنَّهُ ٱلْحَقُّ
"We will keep making it visible to the eyes of those who do not accept Quran, the signs/knowledge in the Universe and in their own bodies till it becomes evident for them that this Quran is a statement of proven fact" {Refer 41:53}
The Grand Quran has informed that Allah will keep revealing, the knowledge about the universe and human body, and it will become manifest to the people that the Quran is a statement of proven fact. Why would it become manifest that the Quran is a statement of proven fact when man sees/perceives new knowledge about universe and human body? If the things mentioned in a book written earlier in time and space are subsequently found a scientific fact only then it is evident to people that the Book is really a statement of proven facts and not conjectural and presumptive.
It is a matter of common knowledge that human beings, unlike many species of animal kingdom, are born in a state that they do not have knowledge/perception of anything………………..MOREhttp://haqeeqat.org.pk/English%20Tafsir%20e%20Haqeeqat/002.%20Meanings%20and%20Tabweeb%20of%20words/003.%20Arzal%20il%20Umre%20Alzheimer's%20disease/03.%20Arzal%20Umar.htm