New research on trends in adult human height over the last century confirm that, no surprise, humans are getting taller overall due to better nutrition and disease control. However according to the health science group Non-Communicable Diseases Risk Factor Collaboration (NCD-RisC), the gain in adult height varies dramatically by country. From their paper, published in the journal eLife:
The largest gain in adult height over the past century has occurred in South Korean women and Iranian men, who became 20.2 cm (95% credible interval 17.5–22.7) and 16.5 cm (13.3–19.7) taller, respectively. In contrast, there was little change in adult height in some sub-Saharan African countries and in South Asia over the century of analysis. The tallest people over these 100 years are men born in the Netherlands in the last quarter of 20th century, whose average heights surpassed 182.5 cm, and the shortest were women born in Guatemala in 1896 (140.3 cm; 135.8–144.8).
The scientists' hope is that understanding these changes and distributions could be used "to improve nutrition and health across the world."
"It would also be valuable to understand how much becoming taller has been responsible for improved health and longevity throughout the world," they write."
"A century of trends in adult human height" (eLife)
"How humans have changed in height in the last 100 years" (CNN)
I’m not an engineer, but I can’t stop watching this hypnotic and oddly satisfying video of tying rebar.
The Australian Acoustic Observatory project, described by its creators as a kind of “Google Street View of sound,” is a new acoustic sensor network of hundreds of microphones and digital audio recorders distributed across multiple remote ecosystems on the continent. The solar-powered system will record animal and natural sounds continuously for 5 years. According to […]
Is your brain a machine? Are your thoughts and feelings just malware of the mind? (And what “really” is a machine, anyway?) John and Eva referee the transhumanist fight of the century. In the blue corner, we have Eva meeting founder and Bryan Johnson, CEO of Kernel, straight from his office in LA. And in […]
Cheap massage chairs are a common Christmas gift, but we’re willing to bet they don’t get a lot of actual use from the people who could really use a massage. We’re talking about people with deep, chronic joint pain or anyone who does a serious workout on a regular basis. For that kind of soreness, […]
The bummers of adulthood are too many to count, but one of our least favorites is the inability to sit down and enjoy a nice bowl of cereal. When you’ve got a long commute ahead, let’s face it: That extra time it takes to pour the milk and chow down is too precious to spare. […]
Who are these people that have time for a job, social life, and actual healthy meals? With a nutrition segment on seemingly every talk show and entire networks devoted to food, it can sometimes seem like we’ve never left our mother’s house and her constant admonitions to “eat your vegetables!” And okay, she was right. […]