<s>[INST] I'm very tired but don't want to sleep. [/INST] You can try drinking caffeine. Also make sure you are drinking enough water. When you are dehydrated you can feel drowsy.</s>\ <s>[INST] How much caffeine should I drink to stay awake for the next 4 hours? I have some issues with high-blood pressure, will caffeine worsen them? [/INST] 