Bread was baked before the invention of agriculture, and potentially even contributed to that invention. It is located at the base of our food pyramid. It constitutes the mainstay of the Mediterranean diet. It represents the most important food in the diet of Sardinian centenarians. But are we sure that the bread we eat now […]
In the late 1990s, Italian medical statistician Gianni Pes of the University of Sassari and Belgian demographer Michael Poulain visited communal archives in many areas of Sardinia, examining birth and death certificates. The goal of their research was to calculate the extra longevity index (ELI), defined as the number of people born in Sardinia between […]
We humans, from a purely evolutionary point of view, are rather young. If we consider Lucy (the first known individual of the species Australopithecus afarensis, an early human ancestor) as a link with our primate cousins, we go back only 3.2 million years. This is a relatively short time in evolutionary terms; for example, the […]
The analysis of the extreme limits of human life span can provide a better understanding of how human beings can escape, delay, or survive the most frequent age-related diseases. For this purpose the study of extremely long-lived individuals can provide hints of considerable interest. Longevity is a particularly complex trait, with genetic, environmental, and lifestyle […]
In the US alone, 75% of the population has problems with body weight. Obesity is a modern pandemic, affecting, to varying degrees, all of the so-called industrialized nations. One worrying study reported that 25% of the calories consumed by American teenagers derive from snacks. It has been shown by several scientific studies that the life […]
In the last decade, studies on longevity have multiplied dramatically. Most of them focus on what are commonly called the supporting pillars; diet and exercise, essentially. However, there is a third element that could be considered the third pillar of longevity: the environment.
Life expectancy at birth is an estimate of the number of years of life that a person can be expected to live, given the place and the population into which they were born.