The women also showed altered behavior in their visual search task when they were exposed to the chemosignals, but had no awareness of any change in their expression or behavior.

FORBES: Yes, You Really Can Smell Emotions

Family members need to learn that a teenager's behavior is usually not about the family, it's simply self expression.

WSJ: How to React to a Teen's Appearance

David Souter, from ICT Development Associates, praised the UNESCO study for linking freedom of expression and privacy rights in the light of a constantly changing Internet in which many people have not adapted their behavior to new privacy threats.

UNESCO: MEDIA SERVICES