一些人在体育锻炼后会出现胸闷气喘的症状,尤其是患有哮喘的儿童,运动更容易诱发气喘的发作。在日前召开的世界气喘会议上,日本研究人员报告说,维生素C的摄入可以有效防止上述情况的发生。他们让17名锻炼后易发气喘的、年龄在3～14岁的儿童连续4周每天摄入2g维生素C,在此?.. Some people experience chest tightness and asthma after physical exercise, especially in children with asthma, and exercise is more likely to cause asthma attacks. At a recent meeting of the World Asthma Conference, Japanese researchers reported that the intake of vitamin C can effectively prevent this from happening. They asked 17 children aged 3 to 14 who were prone to asthma after exercise to consume 2 g of vitamin C daily for 4 weeks.