Specifically which cells AND tissues does SARS-CoV affect and HOW does it affect them?

Bacteria just trust me
actually don’t

Have friends with you or do it with someone you know, like family or friends to help keep you motivated and more fun. Try to make incentives for yourself, and make goals. Like, a movie, or something you can treat yourself to after you have accomplished something. Try to be creative and find ways to make the exercise program more fun for you. Sometimes working out can be hard, tiring, and difficult, which can make things a bit easier to lose motivation. Try listening to music you like, or do it somewhere fun, like the beach, or the forest, by a lake, wherever you feel comfortable. (lest the fitness program is in a building or something like fitness centers are). You can even do it at home in your living room! If you're on a treadmill at home, or some other workout equipment, you can watch tv or invite friends or family over to do it with you. Like I said, make incentives, goals, try to liven things up and make it fun or peaceful  or do it in a place that's suitable and/or comfortable to you, and even listen to music! Hope this helps you with your question!