We usually can't remember what we were doing at a specific time. Those of us with average memories simply forget these1 . And  this is normal. We remember what we need and what we think is important. The rest, we forget.

However, this is not the case for a few people with excellent memories. Kelly Norman is one of these people. She remembers everything that happened last Saturday, and the Saturday before that.

2 , she remembers almost everything in her life since age11. She remembers that at 12:34 p. m. on Sunday, August 3, 1986, a young man called her on the telephone. What was she doing at noon, March 28, 1992? She was having lunch with her father in a hotel. She3 , " My memory flows like a movie-nonstop and uncontrollable. "

Kelly was about 12 when she began to realize that her memory was perfect. As she grew older, her4 continued to develop. Today, she might have one of the best memories in the world.

Researchers have studied Kelly for many years. They have some interesting findings. Kelly can remember5 events on any day in the last 35 years. On the other hand, researchers found that she has difficulty remembering a series of numbers. So her amazing memory only relates to her own life.

People like Kelly have two interesting things in common. Parts of their brains are physically different from the brain of a person with average memory. People like Kelly can't stop thinking about the past. They keep diaries. They read old newspapers. In other words, they work hard to remember the past.

Remembering everything has its advantages. Yet it can also cause6 . Kelly says, "I remember good and that is very comforting. But I also remember bad-and every bad choice. ""And I don't give myself a break…I am still thinking about my mistakes. "She concludes, "Most people think I have a gift, but I don't think so."