Unnecessary mental stress

Words I read: 1703 (15 mintues)

Words I wrote: 110 (5 minutes)

Paper: https://arxiv.org/abs/quant-ph/0106085 (p1~2)

Woke up at 5:30 as always. I feel sleepy because I went to bed at 0:30 last night. It’s just a lack of sleep that I can prevent if I were to go to sleep earlier. It’s my fault, so I have to deal with it and am considering how to prevent it tonight. A good thing is that I wake up at this time no matter what these days. I feel no fear getting sleepy in a day without adding more sleep after waking up, so I think it’s not too bad. It just makes me feel sleepy and require unnecessary mental strength during the day. As for reading routine, I finished reading the article. I read it quickly with less understandings, but I did it in order to know what the author wanted to tell in the paper and get the whole picture. I might read the article again tomorrow.