What are some reasons why people forget things (or, have a bad memory)?

There are multiple factors that contribute to forgetfulness and an overall decline in memory function. One primary reason is the sheer volume of information that individuals are exposed to in today's fast-paced world, leading to cognitive overload. When the brain is bombarded with incessant stimuli, it can become increasingly difficult to prioritize, process, and store information effectively. Moreover, emotional factors play a significant role in memory retention. Stress and anxiety can hinder our capacity to remember; when the mind is preoccupied with negative emotions, it detracts from our ability to focus. Additionally, lifestyle choices, such as inadequate sleep, poor nutrition, and lack of physical activity, can adversely affect cognitive abilities. In essence, the interplay between external pressures and internal conditions forms a complex backdrop against which memory functions can falter.