Why old people could remember what happened in their childhood but forget recent!

Why old people could remember what happened in their childhood but forget recently happened things?

Old memories have already been consolidated in long-term memory, a different area of the brain. New memories are first stored in short-term memory and are later consolidated into long-term memory. One of the areas of the brain that seems to degenerate first in older people and people with other problems, such as alcoholism, are the hippocampus and caudate nucleus, to name a couple, which are in the mid-brain. These structures are associated with short-term memory and consolidating information into long-term memory, which is largely located in the parietal cortex and occipital area. In old age attention and concentration skills also waver (decrease in ability) and these processes have a lot to do with passing memories from short-term to long-term memory. There are also information processing theories of memory and levels of processing theories of memory (Craik & Lockhart) you may be interested in.