All articles tagged light

By Anne Holub Cold dark days and colder darker nights bring on the "winter blues" or SAD (seasonal affective disorder) for an estimated 25 million Americans every year. While it's somewhat of a mystery, the condition is serious and manifests a...

By Mayo Clinic Staff Definition Light therapy is a way to treat seasonal affective disorder (SAD) by exposure to artificial light. Seasonal affective disorder is a type of depression that occurs at a certain time each year, usually in the...

by MICHAELEEN DOUCLEFF Too much artificial light at the wrong time can change sleep patterns and make us groggy in the mornings, scientists report Thursday in the journal Current Biology. They found that a week of camping — completely away...

Jet lag refers to the group of symptoms that we experience after rapid travel across time zones. Jet lag occurs because the body clock, driving our daily rhythms in our physiology and behaviour, can't instantaneously shift to the new destination...

Fireflies in the Forests of Nagoya City, Japan