He hasn't watched much TV this week. He is used to watching less TV.
He ate a lot of cakes last month. He will eat less cakes.
He didn't play sports last month. He will start to play sports.
He didn't walk to work last year. Now he will walk to work on foot.
He didn't eat healthy food last year. Now he will eat only healthy food.
He used the computer a lot last month. Now he will be less sitting at the computer.