Brothers, sleep early and rise early. A few days ago, I was up late coding and felt lethargic during the day, with my body feeling particularly uncomfortable. For the past two days, I've been adjusting my routine. Yesterday, I went to bed at 9 PM and naturally woke up at 5 AM this morning, feeling refreshed and invigorated. I urge all my brothers not to stay up late and to try sleeping and waking up early. Also, if you need a free wake-up service, please follow me, then on my homepage, click the little bell to turn on account notifications. That way, every day when I get up, I'll post a tweet, and you'll receive a notification, so you can get up too.