Why can adults not remember early childhood memories? And how far back is the memory of a toddler?

Question

Generally, most of us don’t have many memories of our early childhood years (before 4 or so). But children that age can usually remember back to important events from a year or so before that—how do they lose these memories eventually? And why can’t we recall them as adults?

In: Biology

Answer 1

When humans are about 8 their brain restructures itself and wipes out most of your old memories. This seems to just be part of preparing for maturation.