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Photo: Workers attack a punching bag at a company in Beijing in January. The equipment was installed so the staff can release stress. Stress poses a threat to the health of an increasing number of urban white-collar workers in China, where death caused by overwork is no longer a rare occurrence.

Bilingual news: Home cooking may not be as healthy as you think. The longer people spend preparing meals, the worse their health becomes, a study found. The result contradicts the popular public health message that it is better to cook from scratch than rely on ready-made meals. It also suggests that food isn't healthy just because it is cooked at home. Possible reasons include home chefs being extra generous with unhealthy ingredients such as butter and salt and feeling they have to eat more because of the time and effort that went into preparation.

Buzzword: A "fatberg" is a congealed lump of fat, sanitary items, wet wipes and similar items found in sewer systems, which do not break down like toilet paper.