metal putting me to sleep?

I have been listening to a lot of metal at work lately.
I dont know if its a coincidence, but I have been extremely tired at work. Its like my brain is worn out. When I take off my headphones and dont listen to anything I start to feel more alert.

A while back I remember Derek telling me that he listens to death metal before he goes to be because it puts him to sleep,

I think that he might be right on that one. There is so much going on in most metal songs, your brain takes it all in and tried to analyze every note flying into your ears. As a result, you get mentally worn on. I dont really know if thats the cause of me being so tired, but I have been beat lately.

music does sooth the savage beast!