“…Religious groups often encourage or require adherents to wear specific types of clothing or adornments, or to make certain modifications to their bodies (e.g., scarification, painting, or piercing), that advertise their religious affiliations. Some Muslims and Buddhists, for example, develop zabiba, or “prayer nodules,” which are raised patches of tissue that develop on the forehead, knees, or feet from decades of pressing the body to the ground in daily prayer (Abanmi, Al Zouman, Al Hussaini, & Al-Asmari, 2002; ur Rehman & Asfour, 2010). Likewise, members of many Christian groups (viz., Roman Catholics, Anglicans, Lutherans, and Methodists) celebrate Ash Wednesday, which marks the beginning of Lent, by attending a service at which church leaders ceremonially inscribe palm ashes in the form of crosses onto their foreheads.…”