Members of the United States military who are injuried abroad often return to the U.S. for treatment and must be transported by aeromedical evacuation between medical facilities.

Evacuations can lead to their own chronic and acute stress, on top of the injuries and potential psychological trauma. 

Increased consumption of omega 3 fats is widely promoted because of a recent belief that it will protect against, or even reverse, conditions such as type 2 diabetes. 

Fads always start with a kernel of scientific truth, as happened with acai berries, chocolate, red wine, and whatever probiotic or yogurt is being for the microbiome sold this week. Omega 3 is a type of fat and small amounts are essential for good health and can be found in the food that we eat.

But a systematic review commissioned by the World Health Organization and published today in the British Medical Journal finds that omega 3 supplements offer no benefit.

Though an entire $2 billion industry has been built scaring people about the modern world (which has promoted a $35 billion supplement market and a $110 billion Organic industry) we're in a Golden Age.

Even the poorest people can afford food, what were once booms and busts of famine and plenty have now leveled off, poverty declines are ahead of U.N. goals, and even centralized energy in developing countries, which could help a billion people, is attainable if western states stop telling poor nations they can only get World Bank help if it's not coal, natural gas, or nuclear. 

And we can prevent cancer for the first time. 

Will beer and fights become the newest health craze?

Though the stereotype of Australian men is the tough, beer-drinking Alpha - they popularized running face-first while rappelling down cliffs among armies across the world - but they must live pretty health lives because they lead the world in longevity.

Australian men, on average, live to 74.1. And women are doing well also. Only Switzerland surpasses the land down under for females. 

Lagged Cohort Life Expectancy

Type 2 diabetes develops when the body becomes resistant to insulin or the pancreas becomes unable to produce enough insulin.  Though there is sometimes a genetic factor but it is overwhelmingly a lifestyle disease caused by being overweight and inactive. The pancreas simply becomes overworked.

Having one of the most powerful bites in the animal kingdom, crocodiles must be able to bite hard to eat their food such as turtles, wildebeest and other large prey.  Well, so do we, but we don't have exceptionally tough teeth and neither do crocodiles.

However, we do have relatively thick enamel on our teeth, which can get ruined over time without proper care. 

Crocodiles don't even have that. They have thin tooth enamel, the opposite of humans and other hard-biting species, as their plant-eating ancestors did. But unlike humans, when their teeth go bad, they seem to just grow new ones.


Fossilized crocodile teeth. Image: University of Missouri