Why do fighting spirit and emotions disappear after waking up?

Yo, I want to get up at 4: 30 tomorrow morning to do my homework tonight. I set the alarm clock to get up at 4: 30. I half-opened my eyes thinking that I could finish it quickly during the day and then fell asleep. I guess it's inertia in this respect.

Sleep means that the brain needs to solidify the distribution of stimulus and stimulus connection to the corresponding nerve cells (recombination information), and temporarily transfer the excitement point (attention) to the nerve cells with weak original excitement intensity, which take over most of the life activities of the human body, while the nerve cells with high excitement which have been treated by internal and external stimuli and responded to prevent the unprocessed stimulus connection from interfering with each other (information overload). (It can also be understood that biochemical energy is limited, and these nerve cells mainly receive and process stimuli when they are awake, and mainly organize, filter and solidify stimuli when they sleep), so most of them must shield the necessary life processes of these nerve cells from internal and external stimuli. Mental fatigue is manifested in that too many stimuli are processed or solidified, and people instinctively feel uneasy, nervous and anxious about stimuli. Sleep plays a role in digesting these stimuli, which is manifested in relieving fatigue. Poor sleep quality refers to the phenomenon that the shielding degree is not enough or the sleep time is not enough to fully digest the stimulus connection. Sleepiness is a pathological mask for too long. These are all manifestations of insufficient nerve control. During sleep, due to the weakening of active activities, people's physical strength has also been restored accordingly.

I looked it up in the encyclopedia.

Want to keep this mood? So, what happened yesterday, or did you want to get an electric shock?