It helps increase their life expectancy.

"Being taller is associated with longer life expectancy," he said, "This is largely due to a lower risk of dying of cardiovascular (心血管的) disease among taller people."

According to the work of Professor James Vaupel and his co-researchers, 50% of babies born in the US in 2007 have a life expectancy of 104 or more.

Even if those causes of death were eliminated, life expectancy would still not go much beyond 92 years.

life expectancy is increasing at two years for every decade.

However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality.

Several noted nutritionists and research projects have concluded that this diet is one of the most healthful in the world in terms of preventing such illnesses as heart disease and cancer, and increasing life expectancy.

Today, life expectancy has risen from 66 for a male at birth in 1948 to around 80 now.

While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality.