Transcript:

Not the gym, but the office.
British researchers believe sedentary work can increase the risk of heart disease.
They're trying to make people change their habits.
Children are taking part in the experiment too. In this school, some pupils take lessons standing.
Meetings might never be the same again. Next time you take a stand, why not do it standing up?

Vocabulary:

sedentary 久坐不动的
heart disease 心脏疾病
habits 习惯
experiment 试验
take a stand 表明态度，宣布立场