[rglullis]

"The Masai, most Brazilians, gymnasts (but only when they're actually doing exercises) and anyone who carries rocks on their heads for a living, have an upright posture."

Somebody would give a shot at explaining why (most) Brazilians were singled-out in this example?

[RK]

I think when you're BSing, you're allowed to make any claim you want.

[swah]

Apparently we carry rocks on our heads for a living?

[aristus]

All that capoeira and streetfighting too. Must be hard to do with a pile of rocks on your head.

[flatline]

Gymnasts typically have a sway back posture, which has some real structural problems that often cause serious issues later in life. This is NOT an upright posture, it is an exaggeration just as a severe slouch is an exaggeration in the other direction.

[naner]

Somebody would give a shot at explaining why (most) Brazilians were singled-out in this example?

Most people who don't live in a sedentary society probably still have good posture and maintain their natural skeletal alignment. I don't know if this applies to all of Brazil.

[rglullis]

Contrary to the stereotype, Brazil is significantly industrialized. The average Brazilian is as sedentary as the average American/German/Japanese.