He is viewing that situation as a serious problem.

He views that situation as a problem.

A new approach is needed to solve this set of problems.

The main problem with this project is the lack of communication.

This question text is too difficult, it's hard to understand.

The activity of brain cells directly affects our thoughts and actions.

He is researching the functions of the midbrain.

He collapsed from a stroke.

He was diagnosed with brain cancer.

Neuroscientists are deeply studying the structure and function of the gyrus.