Cartilage is a firm but pliable connective tissue in the joint. It protects and exerts pressure on the joints by absorbing the pressure and vibration generated during the movement. This reduction in the normal amount of cartilage tissue can cause some forms of arthritis. The exact cause of an immune system attack is unknown. But scientists have discovered genetic markers that increase your risk of fivefold RA. Researchers are very careful when designing a questionnaire for use in a population and health survey to minimize prejudice. For example, they include the duration of the last sexual intercourse. Therefore, the non-response rate to sexual intercourse in Latin America and sub-Saharan Africa is low (1-8%). Although a considerable number of women started sexual relations at least a year prior to the first trade union, few women had normal relations before the first union. In sub-Saharan Africa, premarital sexual relations were more frequent than in Latin America and Trinidad and Tobago. For example, the highest percentage of children aged 15 to 17 is Uganda (32%) and Trinidad and Tobago (1%) the lowest. For children aged 22-24 years, from 90% in Ghana to 6% in Trinidad and Tobago. The age of first marriages is not necessarily parallel to the trend of the first sexual intercourse. Therefore, family planning programs should tell unmarried women the risk of even occasionally getting pregnant. They should also use sex-dependent methods, such as condoms or vaginal methods. During their reproductive years, women are married on average for 15 years and have an active sex between the ages of 0.5 and 2 years. 85% of married women had sexual intercourse within the first three months of the survey. However, 5-38% of women who use birth control pills have no sexual intercourse. Therefore, reducing fertility can not be attributed solely to the use of contraceptives. The frequency of monthly sexual intercourse declines with the duration of marriage, and the rate of decline varies from country to country. Women who want more children communicate more often than not wanting more children and those who are undecided. Women who use the independent sex more often have more sexual intercourse with women who use the same sex-dependent approach. They examine the historical conflict between race and gender issues inside the Black community, the impact of feminism, the role from the Black Church, attitudes about sexuality, and popular culture like hip-hop. The authors boldly assert that, without awareness of these things, there might be no long-lasting treatment for many from the community's race problems. They point out the impact of sexism around the oppression of Black women, including male dominance within Black communities.