Mental health problems among Chinese adolescents during the COVID-19: The importance of nutrition and physical activity Xinli Chi; Kaixin Liang; Si-Tong Chen; Qiaomin Huang; Liuyue Huang; Qian Yu; Can Jiao; Tianyou Guo; Brendon Stubbs; Md Mahbub Hossain; Albert Yeung; Zhaowei Kong; Liye Zou;

Impact of COVID-19 on psychological wellbeing Qing Zhao; Xiaoxiao Sun; Fei Xie; Beijing Chen; Li Wang; Li Hu; Qin Dai;

Do patients suffering from chronic diseases retrospectively overestimate how healthy they were before they fell ill? Andreas Hinz; Markus Zenger; Katja Leuteritz; Anja Mehnert-Theuerkauf; Katja Petrowski;