[Memory Training #23 Remember 3 Numbers] Improve concentration, memory, and stimulate brain function

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This attention game can improve concentration, train memory, and prevent dementia (stimulate brain function) for the elderly.
Video chapters:
00:00 Starting
00:02 Description
00:16 Question 1
00:42 Question 2
01:08 Question 3
01:35 Question 4
02:02 Question 5
02:30 Question 6
02:57 Question 7
03:24 Question 8
03:52 Question 9
04:19 Question 10
04:46 Question 11
05:14 Question 12
05:41 Question 13
06:09 Question 14
06:36 Question 15
07:04 Ending