Body fat boost in ancient times may be root of obesity crisis
Body fat boosted our ancient ancestors' immune systems, scientists have found, as they say the discovery could explain the modern obesity crisis.
Visceral fat, the most dangerous type that collects around the internal organs, prevents infections when food is scarce. But Dr Mary Jane West-Eberhard, a biologist from the Smithsonian Tropical Research Institute in Panama, described it as an evolutionary benefit that had "gone awry".
She said: "Obesity is a global epidemic... What adaptiv...