Well hello . Ummmm hi i guss
Coconut oil girl! its the BEST for hair and skin im not sure what vitamins they have (you can goggle it) but it leves you with long silky hair and super soft skin.Also eat healthy if you eat/drink greasey foods and gross drinks they mess you up!(and you get a little round >.<)
-hope I helped-
They are there because people believe they are from not enough sleep but some people get them from genes. Genes are things you get from your parents.
Hope this helps!!
It is flexion. When the angle between the bones decreases.