We remember things that have strong connections in our mind, especially emotional connections. Childhood memories are often very emotional. This is because when we experience things the first time, we often have strong feelings of fear or excitement. Also, interesting or funny stories from our childhood are often told again and again.
A person with a photographic memory could remember every detail of a picture, a book or an event many years later, but no one has proved that there are people really have photographic memories. Yet, there are some people who do have (amaze) memories and are good at remembering particular things for a (limit) time.
It is (nature) for many people (forget) the new words they learnt yesterday. According to a book called Memory, the sharpest (lose) of memory occurs during the very early period after learning. This means timely review during this period, with a few revisits to what (learn), can significantly help us to remember the information.
Our memory reaches its full power at the age of 25. At that point, we can remember up to 200 pieces of information in second. After this age, however, the brain starts to get smaller. By the age of 40, we lose 10, 000 brain cells every day. By middle age, our memory is significantly (bad) than when we were young.
