Smile lines are a natural sign of aging. ... Laugh lines are natural. While some people may want to reduce the appearance of laugh lines for cosmetic reasons, ... Close the eyes and squeeze tight.

A Duchenne smile is the type of smile that involves your eyes, too. First identified by 19th century scientist Guillaume Duchenne, this smile is thought to be the most genuine, a smile of true ...

Scientists have created infrared contact lenses that can help people see in the dark and with their eyes closed. The study was published in the journal Cell and included researchers from the ...