中年发福 meaning in Chinese

stoutness of the stomach that tends to come with middle age

Researchers found that a particular variant in a gene linked to fat metabolism may help fight flab around the middle
科学家发现，一种与脂肪代谢有关的基因特殊变体能够帮助人们对抗“中年发福”的现象。
A widowed father , his son nicky stephen fung and a daughter natalie gillian chung learn the martial arts from their father but are skeptical of his claim to an alliterative life as a protector of secret agents
一代宗师余小宝黄秋生饰，虽练得独门武功，但中年发福气力不继，唯有靠挂著“精武”招牌的地?医馆讨生活。