hours). The Mishnah taught that one should give food to a pregnant woman who smelled food and requested it. One should feed to a sick person at the direction of experts, and if no experts are present, one feeds a sick person who requests food. The Mishnah taught that one may even give unclean food to one seized by a ravenous hunger, until the person's eyes are opened. Rabbi Matthia ben Heresh said that one who has a sore throat may drink medicine even on the Sabbath, because it presented the possibility of danger to human life, and every danger to human life suspends the laws of the Sabbath. The Gemara taught that in conducting the self-denial required in and , one adds a little time from the surrounding ordinary weekdays to the holy day. Rabbi Ishmael derived this rule from what had been taught in a Baraita: One might read , "And you shall afflict your souls on the ninth day," literally to mean that one begins fasting the entire day on the ninth day of the month; therefore says, "in the evening." One might read "in the evening" to mean "after dark" (which the Hebrew calendar would reckon as part of the tenth day); therefore says, "in the ninth day." The Gemara thus concluded that one begins fasting while it is still day on the ninth day, adding some time from the profane day (the ninth) to the holy day (the tenth). The Gemara read the words, "from evening to evening," in to teach that one adds some time to Yom Kippur from both the evening before and the evening after. Because says, "You shall rest," the Gemara applied the rule to Sabbaths as well. Because says "your Sabbath" (your day of rest), the Gemara applied the rule to other Festivals (in addition to Yom Kippur); wherever the law creates an obligation to rest, we add time to that obligation from the surrounding profane days to the holy day. Rabbi Akiva, however, read , "And you shall afflict your souls on the ninth day," to teach the lesson learned by Rav Hiyya bar Rav from Difti (that is, Dibtha, below the Tigris, southeast of Babylon). Rav Hiyya bar Rav from Difti taught in a Baraita that says "the ninth day" to indicate that if people eat and drink on the ninth day, then Scripture credits it to them