Brothers, sleep early and rise early. A few days ago, I stayed up late coding, felt lethargic during the day, and my body was particularly uncomfortable. I've been adjusting for the past two days; I went to bed at 9 o'clock last night and woke up naturally at 5 o'clock this morning, feeling refreshed and invigorated. I urge all brothers not to stay up late and to sleep and rise early if possible. Additionally, if you need a free wake-up service, please follow me, visit my homepage, and click the little bell to turn on account notifications. That way, every day when I wake up, I'll post a tweet, and you'll get the notification, which can also be your signal to rise.