Psychology & Psychiatry

Toddlers prefer winners—but avoid those who win by force

They have only just learnt to walk and talk—and have only just started to develop social relationships with children of their own age. Yet, these tiny toddlers already use cues of social status to decide which people they ...

Health

New insights into links between national income and obesity

Analysis of data from 147 countries has uncovered new insights into the positive relationship between national income and obesity rates. Debabrata Talukdar of the State University of New York at Buffalo and colleagues present ...

Cardiology

A simple mouth rinse could spot early heart disease risk

What if we could identify the earliest warning signs of cardiovascular disease from a simple saliva sample? Scientists think they have found a way to do so. Gum inflammation leads to periodontitis, which is linked with cardiovascular ...

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