Biden's Mental Health Crisis: Can it be Alzheimer's disease? Neurological Dementia ?

Is it possible that President Biden is suffering from Alzheimer's disease? Here are the symptoms.
Cognitive signs: mental decline, difficulty thinking and understanding, confusion in the evening hours, delusion, disorientation, forgetfulness, making things up, mental confusion, difficulty concentrating, inability to create new memories, inability to do simple math, or inability to recognize common things
Behavioral: aggression, agitation, difficulty with self care, irritability, meaningless repetition of own words, personality changes, lack of restraint, or wandering and getting lost
Mood: anger, apathy, general discontent, loneliness, or mood swings
Psychological: depression, hallucination, or paranoia
Whole body: loss of appetite or restlessness
Also common: inability to combine muscle movements or jumbled speech