Which of these health issues may be caused by sleep deficiency

hormone imbalance

Explanation:

There are many causes of insomnia and irregular sleep. One of these causes can be a hormone imbalance or a change in hormone levels. Even more detrimental is that a lack of sleep can increase hormone imbalance as well creating a cycle of frustration. ... Many hormones play a role in healthy sleep patterns.

it's false.

"every person has their limitations which prevent us from accomplishing something. some are better than mathematics for example and some are worse. those people who are worse might never be able to become mathematicians, but that does not mean that they would not be great at doing something else."

it should be