Medicine - Health
China: Older men are more difficult to have children
The amount of healthy sperm in Chinese men began to decline when they turned 30, according to research by scientists at the Shanghai Institute of Birth Planning (China).
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The amount of healthy sperm in Chinese men began to decline when they turned 30, according to research by scientists at the Shanghai Institute of Birth Planning (China).
Men are more and more mature, and older women grow old. A new study has shown that women 's skin is actually aging faster than men.