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Category Archives: Healthy Brain

Why Do We Dream?

Dreams are a very mysterious nightly phenomenon. We can only speculate on the purpose of dreams, but they are usually extraordinary in nature and a bit confusing to analyze. Why is it that most of the time we forget what we dreamt about as soon as we wake? Why are our accounts of dreams often unreliable or distorted?

The following video delves into theories about REM sleep and how important it is for forming and storing memories. It also discusses lucid dreams, sleepwalking, and a theory behind why we have so many negative feelings like anxiety and anger while dreaming.

http://www.youtube.com/watch?v=7GGzc3x9WJU

What Causes Us to Yawn?

Conventionally we think of yawning as a mechanism for getting oxygen to our brains when we’re running low. However, research and testing shows that the brain is not found to be lacking in oxygen prior to a yawn. So if your brain is not responding to low levels of oxygen during a yawn, what is the reason for this odd but natural action? And why do yawns seem to be contagious?

The following video sheds some light on the most recent theories and evidence.

Try to contain your yawning while watching it!

Why Your Brain Needs Sleep

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Many scientists have studied sleep and why it is that we devote so much of our time to sleeping. New evidence from a recent study by Maiken Nedergaaed and colleagues at the University of Rochester in New York has refreshed a long-held hypothesis that during sleep the brain cleans itself. The scientists studied mice to find that sleep allows fluids to easily run through the brain and clean out metabolic toxins, essentially cleaning the brain of garbage. Check out this video from D News about the study and it’s findings.  

Make sure you get your sleep so you can dump the junk from your brain!

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