Well it is inversion time where I live. Winter time.  An inversion is a deviation from the normal change of an atmospheric property with altitude. It almost always refers to a temperature inversion, i.e. an increase in temperature with height, or to the layer (inversion layer) within which such an increase occurs.

When I started working in the office more I was feeling light deprived so I purchased a litebook.
Bright light is something our body craves, and when we are exposed to it first thing in the morning, we feel more alert and optimistic all day long.

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