When your intellectual cycle is high you will have plenty of positive intellectual energy, it is a good time to plan tasks which require lots of mental ability, quickness, problem solving, programming, taking exams or interviews etc.

On intellectually critical days, your mental performance could be brilliant or it could be terrible

Do routine work on days when your cycle is low, do not expect miracle problem solving capabilities, you just won't get them

Do not schedule exams or interviews when your intellect cycle is low