The conversation between human and AI assistant.
Why do I feel tired when I get up and active at night?
I have a question. I always feel tired in the morning when I wake up, but then I feel more alert and active when it's night time. Why does that happen?
There could be various reasons behind this. Firstly, our body has an internal clock that regulates the sleep-wake cycle. This cycle is called the circadian rhythm. When this rhythm is disturbed or out of sync, we tend to feel lethargic in the morning and more alert at night. Additionally, your lifestyle and habits can also affect your sleep quality and energy levels.