上游充廷大￥ SHANGHAI JIAO TONG UNIVERSIT ACIE Group 7 List of figures/tables Figures Fig.1 Research process Fig.2 The pie graph for the gender of participants Fig.3 The pie graph for the grade of participants Fig.4 Sleep time and awake time for weekdays and weekends Fig.5 The pattern of sleep and wake style. Fig.6 The nap habits Fig.7 Types of sleep style Fig.8 Sleep habits Fig.9 Sleep problem judgment Fig.10 Symptoms to sleep problems Fig.11 Factors to sleep problems Fig.12 Solutions to sleep problems Fig.13 Mindmap for experiments and scientific discussions Fig.14 Sleep cycles throughout sleep Fig.15 Pie graph of asleep and awake in different sleep style Fig.16 Body-temperature cycle Tables Tab.1 Executive condition of stay up test Tab.2 Executive condition of keeping early hours test Tab.3 Executive condition of exercise test -3-ACIE Group 7 - 3 - List of figures/tables Figures Fig.1 Research process Fig.2 The pie graph for the gender of participants Fig.3 The pie graph for the grade of participants Fig.4 Sleep time and awake time for weekdays and weekends Fig.5 The pattern of sleep and wake style. Fig.6 The nap habits Fig.7 Types of sleep style Fig.8 Sleep habits Fig.9 Sleep problem judgment Fig.10 Symptoms to sleep problems Fig.11 Factors to sleep problems Fig.12 Solutions to sleep problems Fig.13 Mindmap for experiments and scientific discussions Fig.14 Sleep cycles throughout sleep Fig.15 Pie graph of asleep and awake in different sleep style Fig.16 Body-temperature cycle Tables Tab.1 Executive condition of stay up test Tab.2 Executive condition of keeping early hours test Tab.3 Executive condition of exercise test