He is all muscles, just like a meathead.

He lost his memory due to damage to the cerebral lobe.

I was so excited watching this movie that my endorphins were overflowing.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

He is good at psychological warfare even in business.

The trigeminal nerve is an important nerve that controls the sensation of the face.

He had difficulty walking due to sciatic nerve pain.