Your Children Won’t Be Able To Live In Space, Without A Major Upgrade

We all dream of journeying (or living) among the stars. But space is a spectacularly awful place for humans, and we’re not suited for life there at all. And yet, it doesn’t have to be that way. Here are all the ways we’ll need to re-engineer the human body, in order to make space our home.

In the six decades that we’ve been sending humans into space, scientists have learned just how truly bad it is for us to live off-planet.

Source: Your Children Won’t Be Able To Live In Space, Without A Major Upgrade

The article doesn’t mention that sperm need gravity to find the egg.  Without gravity, children can’t be conceived in space (without artificial insemination).

Studies: Bones Weak, Forecast Calls for Increasing Fractures, Breaks, and Osteoporosis.

It’s another angle on the attack against our increasingly sedentary lifestyle:

Somewhere in a dense forest of ash and elm trees, a hunter readies his spear for the kill. He hurls his stone-tipped weapon at his prey, an unsuspecting white-tailed deer he has tracked since morning. The crude projectile pierces the animal’s hide, killing it and giving the hunter food to bring back to his family many miles away. Such was survival circa 5,000 B.C. in ancient North America.

But today, the average person barely has to lift a finger, let alone throw a spear to quell their appetite. The next meal is a mere online order away. And according to anthropologists, this convenient, sedentary way of life is making bones weak. Ahead, there’s a future of fractures, breaks, and osteoporosis. But for some anthropologists, the key to preventing aches in bones is by better understanding the skeletons of our hunter-gatherer ancestors.

Source: The Future Looks Bleak for Bones

It is amazing how researchers are able to ignore results from other fields. We know that bone density is not a good predictor for fractures. On the other hand, we know that dairy product consumption is correlated with higher density and fractures.  There is no consensus on how to explain that currently, but one interesting theory is that dairy products promote bone metabolism (hence the higher density) up to renewal exhaustion (hence the fractures).  I’d be interested to see how the theory holds up when they compare bone details between those who are and are not lactose intolerant.  It wouldn’t be hard, considering that an estimated 75% of the world’s population is lactose intolerant.

The diet of the forager doesn’t appear to have been considered either.  Calcium and vitamin K are not found in meat 😉

Individuals who are vitamin K deficient have repeatedly been shown to have a greater risk of fracture. In addition, for women who have passed through menopause and have started to experience unwanted bone loss, vitamin K has clearly been shown to help prevent future fractures.

Vitamin K is not evil – it’s in our best interest to balance intake with blood thinners.