> You physically don’t have the brain cells for long term memories until around age 5 which is why most childhood memories start around there. If your research

> You physically don’t have the brain cells for long term memories until around age 5 which is why most childhood memories start around there. If your research shows that I would strongly urge you to publish it, because that’s a groundbreaking find. In reality, the brain reaches its “full” size of 90% of your body mass around the age of 3. 75% at the age of 2 and 50% at the age of 1 and 25% at birth. Every source we have in Denmark suggests that the human brain starts forming memories around 5 months into the pregnancy. It is access to these memories that aren’t always present, and that access seems to depend on repetition in ages 0-2 and language development beyond that. However, if the brain was physically unable to form memories before the age of 5, well… small children wouldn’t be able to talk, walk or even breathe.