David is fifteen years old. He has become quite moody, less alert, and his grades are slipping at school. What is David likely lacking?

Question

Quizplus · Accepted Answer

David's symptoms suggest that he may be lacking adequate sleep. Sleep deprivation can lead to poor mood, decreased cognitive function, and poor academic performance. While exercise, vitamins and minerals, and water are all important for overall health, they may not be the most likely culprits in this scenario.

David Is Fifteen Years Old