Sleep-deprived brain can put you at risk

Sleep deprivation hampers our ability to accurately read facial expressions and can put us at various risks in daily life, shows a study.

Dolphins squeal with joy while experiencing pleasure: Study

A new study suggests that dolphins squeal like kids when they are happy.

Computer can spot false faces better than you!

A computer has beaten humans when it comes to identify real from fake facial expressions of pain.

How dogs discriminate human smiling faces from blank expressions

A new Japanese study has indicated that dogs can recognize smiling faces, which researchers say may have helped them to live with humans.