Leptin is a cell-signalling hormone vital in the regulation of appetite, food intake and body weight. Studies have shown that an absence of leptin in the body or leptin resistance can lead to uncontrolled feeding and weight gain. Mechanisms and actions of leptin Leptin acts as a hormone that modulates the size of the adipose tissues in the body.
The Rosetta Stone The Rosetta Stone What is the Rosetta Stone? The Rosetta Stone is a stone with writing on it in two languages (Egyptian and Greek), using three scripts (hieroglyphic, demotic and Greek).
Today, the Rosetta Stone, which measures about 44 inches tall and 30 inches wide, is housed in the British Museum in London, where itâs been since 1802, except for a temporary re-location for safekeeping during World War I to an off-site, underground spot.