This forces the brain to make a choice between those two alternatives.

This then gradually forces the brain to rely on the weaker amblyopic eye.

Patching the strong eye forces the brain to rely on the weak eye.

This exercise forces the brain to recall each hold, foot placement, clip, and body position, and then write it down.

They were the victims of the dread angel of affectionate speculation that forces the brain endlessly on roads that lead nowhere.