“They would be expected to sleep better because their internal clock is on the right time.”

Elizabeth Klerman comments on her research that shows jet lag might be treatable with a drug that mimics melatonin (LA Times).

“I texted him and he texted back step-by-step instructions.”

Surgeon David Nott explains how a colleague talked him through a risky amputation in the Democratic Republic of Congo (Guardian).

“The citadel [overlooks] an abyss that, we think, ancient inhabitants used as viewing-point and where they could see possible enemies.”

Benedicto Perez Goicochea reports discovering a pre-Inca citadel in Peru (Andina, mirror in English).