Thank you for participating in this survey. Please answer the following questions based on your actual situation and feelings. Your responses will be kept confidential.
Section A – Basic Information 1. Your age 14-18 19-30 30-40 40-50
2. How often do you usually drink tea or coffee? Never Less than once a week 1–3 times per week 4–6 times per week Every day or almost every day
3. How many times did you drink a sip of tea today ?(今天喝過幾口茶） Once Twice Three times 4-5 times More than 5 times
4. How many hours did you sleep last night? Less than 5 hours 5–6 hours 7–8 hours More than 8 hours
5. Have you had any caffeinated drinks in the last 4 hours? No Yes
6. If yes, please describe
Section B – About Today’s Tea The tea code of each type of tea:Tea A: Japanese Sencha (Green tea)
Tea B: Yunnan Zhenhong (云南滇茶）（Black tea)
Tea C: Tieguanyin(鐵觀音）(Oolong tea)
Tea D: Junshanyinzhen（君山銀針）(White tea)
7. Tea code you drank today Tea A Tea B Tea C Tea D
8. Did you drink the whole cup? Yes Almost all About half Less than half
9. How hot was the tea when you drank it? Very hot Warm Slightly warm Cold
10. How much did you like the taste of this tea? 1 (not at all)
5 (loved it)
Section C – how you feel Before Drinking For the following questions, please click one number.Scale: 1 = Very low / very weak, 2 = Low, 3 = Medium, 4 = High, 5 = Very high
11. How tired do you feel right now? 12. How tired do you feel right now? 13. How alert/awake do you feel right now? 14. How well can you concentrate right now? 15. How good is your mood right now? (sad → happy) Section D – how you feel After Drinking (about 20–30 minutes after finishing the tea.) Use the same 1–5 scale as before (1 = Very low / very weak, 2 = Low, 3 = Medium, 4 = High, 5 = Very high) 16. How tired do you feel now? 17. How alert/awake do you feel now? 18. How well can you concentrate now? 19. How good is your mood now? (sad → happy) 20. Do you feel physically energized (e.g. more ready to move, less sleepy)? 21. Did you notice any of these physical effects after drinking the tea? Faster heartbeat Shaky hands / feeling jittery Warmth / sweating Headache Stomach discomfort / nausea No noticeable physical effects
22. Did you feel more anxious or nervous after drinking the tea? Not at all A little Medium Quite a lot Very much
23. Overall, compared with before drinking, how energized do you feel now? Much less energized A bit less energized About the same A bit more energized Much more energized
24. Would you like to drink this tea again in daily life? Definitely not Probably not Not sure Probably yes Definitely yes
25. Any other comments about how this tea made you feel (positive or negative)?