Some common reasons include: 1  a serious accident â such as a road accident, a severe head injury, a serious fall or severe burns. 2  a serious short-term condition â such as a heart attack or a stroke. 3  a serious infection â such as sepsis (blood poisoning) or severe pneumonia.
The definition of unnecessary is not needed. An example of something unnecessary is a bowl of sugar for cooking meatballs.
The definition of âdistractâ is âto draw or direct (as oneâs attention) to a different object or in different directions at the same time.â1 Distraction is especially detrimental to human functioning in situations requiring cognitive processing of large amounts of complex and rapidly changing information.