Reason you shouldn't write a blog post when you are tired.
I was trying to write a blog post last night and didn't know when sleep took my phone from my hands. Woke up later in the night to see the phone at the floor near the couch where I was sitting and fell asleep on. Thank God no one touch the phone, I would've lost the draft.
In this case, you should take a few sips of coffee. I have faced similar problem that's why i finish my post in a day.