A group of nanoengineers, biologists and physicists have used innovative approaches to deduce the internal structure of chromatin, a key player in DNA regulation, to reconcile a longstanding controversy in this field. This new finding could unlock the mystery behind the origin of many diseases such as cancer.

A new study connects abnormalities of the “stress” hormone cortisol with symptoms of depression in obese children, and confirms that obesity and depression often occur together, even in children. The results were presented at The Endocrine Society’s 91st Annual Meeting in Washington, D.C.