Stories by Janelle Weaver

Meaningful gestures and glances may help children learn more words, independent of how much parents talk to them

Unspoken cues communicate which type of "trust hormone" gene we have

The social media site reveals daily emotional rhythms are consistent across cultures

Using oral contraceptives may affect relationship satisfaction

A certain turn of phrase brings out people's best civic selves

Having a bad reputation gets you noticed

Our senses have difficulty parsing stimuli linked to a negative event

A gene that interacts with sex hormones may explain the gender gap

Babies understand counting before they utter numbers

Although the power of positive thinking is clear, little is known about how negative mind-sets affect the success of therapies

Two simple tips to learn better and take tests more effectively

Weeping releases a chemical that reduces sexual arousal

Babies understand that bigger beasts usually top the pecking order

Oxytocin, known for encouraging bonding, may underlie bias

A device that sends electric current through the brain improves numerical skills

Twins interact purposefully in the womb