Not eating – and, in some cases, drinking – is part of certain religious practices. In the Bahai faith, no food or drink is normally consumed during daylight hours for nineteen days. During Ramadan, Muslims will observe a similar practice although exemptions are allowed for in certain cases, such as nursing mothers, small children, or where a serious condition may prevent it. Some Hindus observe fast several days each month. In southern parts of India, Tuesdays are common fasting days. In most cases, fasting appears to be an act of faith, but the relationship between hunger and spirituality means that the reasons people fast may go far beyond mere acts of devotion.