Have on the brain and Taken up

Taken up and have on the brain are semantically related in busy topic. In some cases you can use "Taken up" instead an adjective phrase "Have on the brain".

Taken up adjective - Having or showing excessive or compulsive concern with something.

Have on the brain and taken up are semantically related in busy topic. Sometimes you can use "Have on the brain" instead an adjective phrase "Taken up".