Answer:
Concentration difficulty
Explanation:
Due to lack of sleep or sleeping 2 to 3 hours per night, disturbs the circadian rhythm. It results in the lack of focus or concentration on daily works whether it is to read, write or any other household work. Less sleep can result in hindering thinking ability of that person along with changes in his emotions leading to depression. So, a night sleep of at least 6 hours is necessary as it in a way repairs the body mentally and physically.
