Eastern Orthodox laity traditionally abstains from animal products on Wednesdays (because, according to Christian tradition, Judas betrayed Jesus on the Wednesday prior to the Crucifixion of Jesus) and Fridays (because Jesus is thought to have been crucified on the subsequent Friday), as well as during the four major fasting periods of the year: Great Lent, the Apostles' Fast, the Dormition Fast and the Nativity Fast. Catholic laity traditionally abstain from animal flesh on Fridays and through the Lenten season leading up to Easter (sometimes being required to do so by law, see fasting and abstinence in the Roman Catholic Church), some also, as a matter of private piety, observe Wednesday abstinence. "Fish" is not considered proper meat in any case (see pescetarianism, though the Eastern Orthodox allow fish only on days on which the fasting is lessened but meat still not allowed). For these practices, "animal rights" are no motivation and positive environmental or individual health effects only a surplus benefit; the actual reason is to practice mortification and some marginal asceticism.