New research proves writing letters of gratitude, like Jimmy Fallon's 'Thank You Notes,' is a pro-social experience people should commit to more often. The gesture improves well-being for not only letter writers but recipients as well.

A team of researchers has, for the first time, fully 3D printed an array of light receptors on a hemispherical surface. This discovery marks a significant step toward creating a 'bionic eye' that could someday help blind people see or sighted people see better.

Clinicians should consider how the way we think can make us vulnerable to obesity, and how obesity is genetically intertwined with brain structure and mental performance, according to new research.

In a finding that caps years of exploration into the tiny particle known as the Higgs boson, researchers have traced the fifth and most prominent way that the particle decays into other particles. The discovery gives researchers a new pathway by which to study the physical laws that govern the universe.

Researchers are discovering how forest conservation in Fiji can minimize the impact of human activities on coral reefs and their fish populations.

During their annual migration to wintering sites in Mexico, monarch butterflies encounter dangers ranging from cars and trucks to storms, droughts and predators. A study has found evidence that these iconic insects might be facing a new challenge.

New research shows that the ability to understand what someone is feeling based on their tone of voice can be challenging in mid-adolescence (between 13-15 year olds), particularly when it comes to tones of voice which express anger, meanness, disgust, or happiness.

Little is known about how brief yet acute stressors — such as war, natural disasters and terror attacks — affect those exposed to them, though human experience suggests they have long-term impacts. Two recent studies of tree swallows uncover long-term consequences of such passing but major stressful events. Both studies provide information on how major stressful events have lasting effects and why some individuals are more susceptible to those impacts than others.

Protein aggregates have a bad reputation in conditions such as Alzheimer's disease and Parkinson's disease, but in bacteria, inheritance of aggregates by daughter cells may help protect against the same toxic stresses that triggered them in parental cells, according to a new study.

Biological anthropologists have described three new species of fossil primates that were previously unknown to science.