资讯

FERTILITY rates appear to have been declining in both men and women globally – and now scientists have found a common ...
The U.S. birthrate remains below replacement, raising concerns about Social Security and Medicare. Financial incentives are ...
The collected data – that covers up to the present day – shows a fertility rate that’s falling fast. But the predicted rate ...
As fertility declines, the share of the young population falls and that of the older, dependent population rises ...
As the country faces the world’s lowest fertility rate, young adults’ attitudes are shifting about having children out of ...
South Korea’s fertility rate rose to 0.82 in the first quarter of 2025, rebounding to the 0.8 range for the first time in two ...
Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm ...
A Statistics Korea demographic report released on May 28 said the total fertility rate was 0.82 in the first quarter, up from ...
Toxoplasma: Some sperm cells had holes in their head, suggesting the parasites were trying to invade them as it would any ...
Experts attending International Family Forum in Istanbul warn of demographic crisis as fertility rates plummet worldwide - ...
For almost half of all infertility cases, male infertility is a contributing factor. However, the majority of the emotional ...
On the other hand, excessively low fertility rates can lead to population contraction and a loss of global competitiveness.