In all vertebrate species, ghrelin is mainly produced in the stomach. Ghrelin-containing cells in the stomach are more abundant in the fundus than in the pylorus. 3 The X/A-like cells in the oxyntic ...

The Campanian Ignimbrite (CI) eruption in Italy 40,000 years ago was one of the largest volcanic cataclysms in Europe and injected a significant amount of sulfur-dioxide (SO2) into the stratosphere.

The enlightened truth of the role of fire in human evolution. Illustration by Paul Garland The next time you find yourself lost in thought while gazing at a fireplace ablaze or even a solitary candle ...