Japan's Population Decline Is Speeding Up

Ministry of health estimates towns and villages throughout Japan are facing extinction by 2040.Japan one of the most racist nations are unable to get their birth rate up much the same as Europe! Japan has over one third of its population over 50 and the mean age of Japan is rising! japan has over 200 species on the verge of extinction including the Japanese who have one of the world's lowest fertility rate.70% of Japanese men under 30 are not in a relationship.A compilation of reports over a 50 yer period showed a significant time-dependent decline of sperm concentration (r = -0.754, P = 0.005) in Asian men. This present review also showed a  time-dependant (meaning increasingly lower levels over the 50 year period) decline in sperm concentration (-0.44×106/mL/year, 95% CI: -0.65 to -0.23; r = -0.473, P = 0.040) which accounted for an overall 22.17% decrease in past 50 years. Conclusions: This study brings to the forefront that sperm concentration among Asian men follows a mild declining trend over the period of 50 years although not as large as the 60% decline of European men it is most signifiant in lighter skinned Asian populations. (See non -Carsen reports Asian fertility)The first cross-sectional study on semen quality covering fertile men from the major regions of Japan. It showed that semen quality of fertile Japanese men is comparable to that of the best in European regions as the best of Europe has seen only a 22% drop in sperm count.this supports a 2009 report that showed Japanese fertile men had a semen quality at the level of Danish men, who had been reported to have the lowest among investigated men in Europe at that time. The low level of semen quality of the fertile Japanese men may be due to lifestyle or other environmental factors; however, ethnic differences caused by different genetic variation or combinations cannot be ruled out by this study.   Black and melanated nations have seen no decline in birth rates but expanded growth globally.(research includes published European study (Jørgensen et al., 2001).Standard statistics (mean, median, SD, 5–95 percentiles and frequencies) were used for description (table 1). Between-group differences for continuous variables giving the basic description of the study population were tested by the non-parametric Kruskal-Wallis test. Between-group differences for categorical variables were tested with the Fisher's exact test.