Accordingly, reducing estrogen may reduce a female's probability of breast cancer. The question is: How to lessen the estrogen level in a female's lifespan? The risk of breast cancer is quite a bit reduced in Japan than that in the United States?about one-fourth. This discrepancy might be explained by the fact that the menstrual cycle of women in the United States is approximately 26 to 29 days, when compared to average of 32 days for females in Japan. So, the length of the menstrual cycles may hold the answer to reducing cancer risk ladies, since the shorter the menstrual cycles, the less creation of estrogen, along with the lower the cancer risk. Rhinos existed back in prehistoric times and when flourished in thousands, moving into diverse habitats across Africa, Asia, Europe and North America. Today, due to poaching and habitat loss, few remain. Since 1970 alone, the rhinoceros population has declined by approximately 90 percent, in line with the American Wildlife Foundation. As of 2010, you can find five type of rhinos totaling approximately 24,500 within the wild and 1,250 in captivity, reports the International Union for Conservation of Nature (IUCN). The White Rhino is under threat of extinction and also the other four species are saved to the verge of extinction. The five remaining species are: 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. d get a penny for every man and woman who complains of having less and less sex, I