A 68-year-old man, Zhu Guorong, has surprised his family members, neighbours and friends by gaining new youth. Senior doctors and medical experts in Haikou of Hainan Province are stumped as well.

Zhu, whose hair had turned gray in his 40s, recently started to grow new black hair on his head and develop acne like a young man. His skin has begun to become satiny and delicate like a teenage boy's.

Many local medical experts have failed to determine the secret of why Zhu, a retired printing worker, has recently gained new youth.

A grandfather, Zhu was born in Sichuan Province and settled down in Hainan 13 years ago.

Nanguo Metropolis News