Yawning Reconsidered…

Just a brief one.

I had tried some breathing exercises with the aim of increasing my level of carbon dioxide to see if it caused sedation or relaxation as I had read. I noticed that each time within a minute of starting the exercise I had the uncontrollable urge to yawn.

I was performing these exercises as I lay in bed. Interestingly, the urge  to yawn only came when my eyes were open.

This led me to wonder whether yawning is a mechanism by which the body avoids respiratory depression and associated increase in carbon dioxide levels (state during sleep) when it is contradicted, ie our open eyes signalling that it is not time to sleep. The yawn draws air deep into our lungs to rebalance the oxygen/CO2 for wakefulness.

 

 

 

Advertisements

~ by funnyinthehead on August 22, 2013.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

 
%d bloggers like this: