able create complete influence how science sense think understand value why young

What's the first thing you remember doing？Most of us have a "（1）

valuable

valuable

" early memory of our childhood，but can we really believe those memories？Did those special moments really happen or did we just make them up？
   It's really strange and difficult（2）

to understand

to understand

，but according to a research，about four out of ten of us "invent" our first childhood memory.Rather than having experienced something，we could have made up a fake （假的） memory from videos or photos we've seen.We could（3）

have been influenced

have been influenced

by a story and regarded someone else's memory as our own.It means that memories of our（4）

younger

younger

years，especially before the age of two，may be inexact，or（5）

completely

completely

false.
   But why don't we have clear memories from that age？Well，that is because our（6）

ability

ability

to hold memories from before the age of two isn't great.While at that age we do have short-term memories，according to an expert at the University of Westminster，the memories that baby make are not long-lasting.This is possibly because of the rapid（7）

creation

creation

of brain cells （細胞） in our early years.Some（8）

scientists

scientists

also believe that after the age of seven，we get some kind of childhood amnesia （遺忘癥）.
   So（9）

why

why

do we make up fake memories？Some experts believe that there is a clear desire（渴望） for a（10）

sense

sense

of self and having our whole story.Creating memories can give us a more complete picture for our early lives.As we get older，we want to have a full picture of our lives，