It sounds like he is bored.

Do you have a cat tree / perch /climber? Do you have places he can sit and look out a window?

Does he have toys? Leave 2 or 3 out and rotate them every 3rd day so he doesn't get tired of them. I keep a few toys in a catnip container, so that when I take one of them out, it is VERY enticing! But a 1 year old should only have access to catnip 2 to 3 times a week. NOT daily.

You can get one of the squiggles on a stick and play with him 2 or 3 times a day for 5 minutes. Those type of toy should not be left out, the cat must be supervised with it. This way he gets special positive Mom time, and he gets a work out.