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Image of the Day
Anna Azvolinsky | Aug 13, 2015
Researchers who first identified irisin quantitate levels of the hormone in human blood and show it is released during exercise.
Burn Victims Produce Brown Fat
Kerry Grens | Aug 7, 2015
Following extreme trauma, patients’ adipose samples have revealed—for the first time in humans—that white fat can be converted into energy-burning brown fat.
Gut Microbiome After Weight-Loss Surgery
Amanda B. Keener | Aug 5, 2015
Gastric bypass surgery can have long-term effects on the composition of the gut microbiome, a small study shows.
Pioneering Obesity Researcher Dies
Amanda B. Keener | Jul 31, 2015
Jules Hirsch, who described the link between body weight and metabolism, has died at age 88.
Bone Marrow Makes New Fat Cells
Ashley P. Taylor | Jul 16, 2015
The origins of adipocytes have been hotly debated, but a human study supports the idea that the bone marrow takes part.
The Death Toll Tied to Sweet Drinks
Kerry Grens | Jul 1, 2015
Annually, about 184,000 deaths annually are linked to drinking sugary beverages, according to a new study.
The Dark Side of Light
Kerry Grens | May 14, 2015
Artificially extended days cause mice to gain fat and alter the function of their brown fat, a study shows.
The Lasting Effects of Obesity
Kerry Grens | Apr 23, 2015
Losing weight does not mitigate the effects of obesity on tumor development in mice.
Fat Injection Slims Obese Mice
Kerry Grens | Apr 7, 2015
Transplanting energy-burning brown fat can prevent excess weight gain in a mouse model of obesity.
Irisin Skepticism Goes Way Back
Kerry Grens | Mar 18, 2015
Post-publication peer reviewers had questioned data about the supposed fat-browning enzyme from the get-go.