The king and the bride may wash their faces, and the newly delivered mother may wear leather shoes Numbers 29:7) “you shall afflict yourselves” The words of rabbi eliezer
Yom Kippur: Significance, Facts & Traditions | HISTORY
And the sages prohibit this.
Sexual relations are also prohibited on yom kippur
While judaism generally encourages sex between married couples for both procreation and pleasure, experiencing sexual pleasure on a day intended to focus on spiritual matters is considered inappropriate. In order to ensure that they not end up sinning, husband and wife should behave on these days as they do while she is a nidda. An overview of yom kippur laws on yom kippur, the torah instructs us to afflict ourselves, which means abstaining from an assortment of physical pleasures There are two reasons for this
A) on this day, when our connection to g‑d is brought to the fore, we are compared to angels, who have no physical needs. Though there are five specific practices we abstain from on yom kippur (eating and drinking, wearing leather, bathing and shaving, anointing ourselves with oils or lotions, and having sexual relations), fasting (not eating or drinking) is the most. The way you asked the question is imprecise, because you can’t equate the prohibition of intimate relationships of rosh hashanah with that of yom kippur By the torah law, physical intimacy is forbidden only on yom kippur
This is what the torah means when it says (leviticus 16:31, 23:27, 23:32