what biological factors?
1 Sleep is a biological factor that can affect the learning performance of people. 2  In particular, too little sleep has a major impact. 3  It leads to memory and concentration problems, people have more difficulty responding flexibly to new situations and there is a stronger response to emotionally negative stimuli.
1 The definition of this condition is still being developeâ¦. 2  Biological Factors That Contribute to Depression Depression is a mental illness that affects millions of people at least at one point in their lives.