to identify a specific first memory, despite having lived much longer since childhood
That raises an obvious question. Why do some memories survive for decades while countless others disappear completely?
Why Your Brain Doesn’t Hold Onto Every Childhood Memory

The answer begins with how the brain develops.
Young children are constantly absorbing information, but the systems responsible for organizing and storing long-term autobiographical memories are still under construction during the first few years of life. As a result, experiences may be emotionally meaningful in the moment without becoming permanent memories that can easily be recalled decades later.
Language also plays an important role.
As children grow, they become better at turning experiences into stories they can tell themselves and others. Before those storytelling abilities develop, many experiences remain difficult to preserve in a way that adults can later access.
The YouGov research also suggests another factor many people overlook. Memories