Humans should urinate at least four to six times a day, but occasionally, the pressures of modern life force us to clench and hold it in. How bad is this habit, and how long can our bodies withstand it? Heba Shaheed takes us inside the bladder to find out. [Directed by Artrake Studio, narrated by Julianna Zarzycki].
人一天至少需要排尿4到6次，但是偶然情况下，都市生活的压力迫使我们要憋着尿。这个习惯有多坏？我们能憋多长时间？赫巴·沙希德(Heba Shaheed)带我们来看看膀胱的内部找出答案。 
