Maybe she does/maybe she doesn't. I think it's probably just the awful hair colour making it look so bad because i don't recall her brown hair ever looking greasy
Also i'd like to add that hair can get greasy if there is too much product build up. So even if you do wash it regularly it will still look unwashed. I use this one for my hair instead of normal shampoo after i had that problem and it's amazing. It actually is the best shampoo ever!
It's definitely the angle, position she's in, her back is curved so she's pushing her ass out etc. Taylor doesn't have an ass and if she wanted to get one she would need to do weighted squats pretty much every day.
wow she must be on some pretty high dosage meds for them to be working that well for her.. usually antidepressant meds take weeks to fully kick in(and the first week or so you feel like shit). How long has she been on them again?