Due to the long working hours (24-hour continuous work), employees are overworked. Is taking sick leave a work-related injury?

First of all, it is a serious violation of labor law to make it clear that your company arranges you to work 24 hours a day. Because the labor law stipulates that working hours are 8 hours a day and 44 hours a week. Overtime is overtime. Overtime on working days 100%, overtime on rest days 200% and overtime on legal holidays 300%. It is illegal for your company to arrange for you to work 24 hours a day. You can complain about your company's illegal behavior to the labor inspection brigade of the French Ministry of Labor and Personnel. I believe they will investigate and deal with it according to the actual situation and order the company to rectify. If the company does not rectify, it will also be fined and other administrative penalties. The company should also reissue the overtime pay you deserve.