Category «Sleep»

Genetics of Seasonal Affective Disorder

The Winter Blues… described as a low feeling, generally apathetic, blah, usually accompanied by changes in sleep.  It is fairly common in northern latitudes, affecting almost 10% of some populations. Seasonal Affective Disorder (SAD) is characterized by a recurrent depression with a change in the season usually in fall/winter for most. Scientists think this is …

Color TV has made us fat: melatonin, genetics, and light at night

Color TV has made us fat! Nope, not just because of the commercials advertising Taco Bell at night nor the fact that we are laying on our couches watching those commercials.  The flickering blue light that can be seen each evening pouring out of almost every window in the neighborhood is fundamentally changing our biology. …

Genetics of Grinding Your Teeth

It never fails to amaze me how many of our quirks and traits have a genetic basis.  A study that came out last week caught my eye. Bruxism, teeth grinding, is linked to a genetic variant. The study, Genetic polymorphisms in the serotoninergic system are associated with circadian manifestations of Bruxism, looked into several polymorphisms in …

Genetics of Sleep Disturbances

A good night’s sleep is invaluable, literally priceless — but so many people know the frustration of not being able to regularly sleep well. There are many factors involved in sleeping well, and genetics plays a role in some sleep disorders. Looking at the genetic basis of your sleep disorder may give you ideas on …