Is watching tv all day unhealthy?

Is watching tv all day unhealthy? My mom uses to watch tv all day, except when she has to go to an appointement or buying groceries but otherwise she sits everyday at the same couch watching the same comedy or drama stuff on tv. In all the years, I‘ve never seen her going out for a walk in nature or doing workouts, she just sits in front of the tv practically all day. It‘s like a routine of hers. She eats, drinks, makes calls in front of the tv, leaves the couch for getting something to eat or doing some cleaning but then goes back to the couch and watches tv. Most of the time she sitts there between 10 a. m to 1. a. m.

What do you think?
Is watching tv all day unhealthy?
Is watching tv all day unhealthy?
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