He is doing a special exercise to train his occipitofrontalis muscle.

He was diagnosed with agranulocytosis.

Anthropozoonosis, or animal-derived infectious diseases, have the potential to spread between humans and animals.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is undergoing regular medical check-ups due to sickle-cell anemia.

He contracted severe invasive streptococcal disease and underwent emergency surgery.

Kujō Yoshitsune, the former Prime Minister and Regent of the Go-Kyogoku, played an important role in Japanese history.

He is suffering from post-traumatic stress disorder from the war.

The rectus capitis posterior major muscle is a part of the neck muscles, and it helps in the action of pulling the head backwards.

The rectus capitis posterior minor muscle is a part of the neck muscles, and it helps tilt the head backwards.