Most people do not have memories from the age of 3-4, and in fact we remember very little from before the age of 7. When trying to recall memories from childhood, we are not sure if they are real things or things we recall based on photos or stories we were told, a phenomenon called “childhood amnesia”. Childhood memory amnesia occurs in children around the age of 7. Most children at age 3 can recall many things that happened a year ago, and these memories will last until age 5 or 6, but after they turn 7, childhood memories fade rapidly. According to research, most 8- and 9-year-olds can only recall a small percentage of their experiences before age 3 (about 35%). The paradox of “the ability to remember clearly in childhood and the forgetfulness of events in childhood as an adult is what makes the brain so amazing.” Previous studies of the phenomenon have explained a number of factors, including the fact that memory fades vaguely over time and that the form of memory is closely linked to the form of language ability. One theory suggests that the way a person remembers a situation depends on whether he or she uses language. As a child gradually learns to speak, his memory of the world around him changes its encoding. Thus, memories formed before language skills matured are gradually forgotten. Some researchers have found that childhood amnesia depends on the family and cultural context in which you grew up, and psychologist Elaine Reese of the University of Otago says that “in memory, descriptive stories render events more vivid, whether the act of storytelling occurs during or after the event.” People who grow up in a narrative-rich oral environment have a drive to remember earlier. At the same time, humans tend to remember emotional events. A new research paper proposes a new explanation, which suggests that completely new cells are constantly being formed in the young brain during infancy, which disrupts the normal functioning of the areas of the brain that store memories. The mechanism by which the brain constructs new cells continues throughout the life of a mammal, a process known as “neurogenesis. In some species, including humans, neuronal production is very rapid during infancy. This phenomenon is particularly evident in the hippocampus of the brain. The hippocampus is the area of the brain responsible for learning and memory. Very often, neurogenesis occurs to help us learn better and improve our memory. But this paper points out that when the rate of neurogenesis in the brain is too high, its benefits turn into drawbacks – producing new neurons at a very fast rate has the effect of “crowding out” the old neurons that hold memories, ultimately increasing the frequency of losing those memories. This ultimately increases the frequency of loss of these memories and contributes to the onset of amnesia in infancy. Some believe that childhood amnesia is a byproduct of brain development and that the evolution of such a complex brain has come at a price, one of which is the overwriting of childhood memories. Although we do not remember exactly the particular events that occurred during our early childhood, the accumulation of event memories can leave a lasting trail that influences individual behavior. What happens in the first years of an individual’s life may seem very forgettable, yet it plays an important role in shaping our behavior and other functions of the body in adulthood.