I keep waking up at 3 a.m.

And I keep on remembering "The Conjuring" wherein the protagonist wakes up at 3:15 am every single night. It's scaring the living daylights out of me. I find it difficult to fall back into sleep and, usually, dozes off at around 4 am already. That's why I feel so grumpy when my alarm goes off at 6:45 am.

So I looked online for possible reasons why this is happening. Apparently, there are a lot of literature on the subject  - scientific ones and paranormal ones. A lot of other people seem to experience it, too.

As expected, many pointed out that this was the witching hour and the time when spirits supposedly are stronger. But there were scientific reasons offered, too: low blood sugar and your adrenal glands shooting up because of stress. Another one  I found interesting: self preservation.

"It's probably a throwback to when our ancestors had to watch out for predators, so they wake up at 3 a.m. to see if everyone is still there."  (Read full article.)

My favorite explanation is this one offered by Traditional Chinese Medicine. You can read it here. I like it because it integrates scientific and spiritual/emotional reasons together. If you have time, read part 2 as well.

I'll try to remember these reasons when (and if) I wake up at 3 am again tonight. ;)