We learned that using the computer late at night could cause depression.

Not only is computer time cutting into your much-needed sleep time, but a study from Johns Hopkins University found that the bright lights from computers and even iPads can increase the risk of depression and learning problems.

According to the findings, exposure to light from screens late at night activates cells in the eye called intrinsically photosensitive retinal ganglion cells.  This exposure elevates levels of stress hormones in the body, which can lead to depression and lower cognitive function.

And it’s not just computer screens that do this but any kind of bright light, even the seemingly innocuous bedside table lamp.