It is in fact the most massive muscle of the human body. The glutes, as they are commonly known, are a group of three muscles located at the back of each hip or buttock. The gluteus maximus is the largest and most superficial muscle of the group. It contributes most of the mass that can be seen as the buttocks.
Tourette's syndrome occurs along a spectrum of tic disorders, which includes transient tics and chronic tics. The exact cause of Tourette's is unknown, but it is well established that both genetic and environmental factors are involved. Genetic studies have proved that the overwhelming majority of cases of Tourette's are inherited, although the exact mode of inheritance is not yet known, and no gene has been identified.
Tourette's tends to run in families. Other things that may increase the risk include: 1  A mother who had severe nausea and vomiting during the first trimester of pregnancy, was under severe stress during her pregnancy, or who drank a lot of coffee, smoked cigarettes, or drank alcohol during her pregnancy. 2  Not having enough oxygen or blood supply during birth. 3  A low birth weight and ...