The issue focused on studies from researchers at Texas Tech University and Texas A&M University that showed studies show studies show sleep deprivation causes biological changes that include biological changes that increase your risk for depression.

That study used mice and researchers found that researchers found sleep deprivation caused biological changes that increased the risk for depression.

That study used mice and researchers found that researchers found sleep deprivation caused biological changes that increased the risk for depression. But studies like this one only study depression and biological changes and researchers don't know