In a child under three or four years old, he has more difficulty remembering things as he grows up. Some researchers have even claimed that young children do not form memories, but this is false. However, their memories may fade as they age or older memories are sometimes replaced by newer ones. Some people don't even remember simple things like their third or fourth birthday. Other researchers also believe it is related to cognitive and language skills. According to psychology professor Carole Peterson: “That’s not the case. Very young children can still remember past events. Peterson also said, “As young children grow, their earliest memories tend to appear later and later, but around the age of ten, their memories crystallize. » Researchers even carried out tests to check the children's memory. They asked 140 children aged 4 to 13 to describe their earliest memories, then asked them again two years later. They had to estimate their age at that time and parents had to confirm it. In doing so, they found that 4- to 7-year-olds showed very little overlap between the memories they recalled first and the memories they recalled two years later. Peterson said, “Even when we repeated what they had told us two years before, many younger kids told us it hadn't happened to them. » ⅓ of children aged 10 to 13 described the same earliest memory during their second interview. More than half of memories were recalled in the same way