近日，清华大学的科学家在抗衰老研究领域取得了一项令人振奋的进展： 一种新型抗衰老疫苗被发现能够在小鼠模型中显著改善与年龄相关的身体和认知功能衰退。

ULAN BATOR, June 27 (Xinhua) -- Mongolia has recorded 232 new cases of measles infection over the past 24 hours, bringing the national caseload to 10,065, according to the country's National Center ...