For most African Americans, the observance of life events follows the pattern of mainstream American culture. While African Americans and whites often lived to themselves for much of American history, both groups generally had the same perspective on American culture.
Causes of Menstruation Nausea. As far as nausea is concerned, there are some very exquisite things which can result in nausea when a woman is having her periods. One of the possible causes of experiencing nausea during the time of the menstrual period is, the simple changes in the hormone levels, that is happening in her body.
1 Human chorionic gonadotropin hormone (hCG). 2  This hormone is only produced during pregnancy âalmost exclusively in the placenta. 3  HCG hormone levels found in maternal blood and urine increase dramatically during the first trimester and may contribute to nausea and vomiting that are often associated with pregnancy.