Why are humans getting taller as a species?


29-07-22 07:27:00,

Why are humans getting taller as a species?

Reported on by

Robert Gorter, MD, PhD.

July 19th, 2022

(Credit: Getty Images)

This particular answer comes from Michael J. Dougherty, assistant director and senior staff biologist at Biological Sciences Curriculum Study in Colorado Springs, Colorado, USA

Anyone who has ever visited a home built around the time of the Revolutionary War along the back alleys of Philadelphia or Boston has been struck, metaphorically if not literally, by the characteristically low ceilings and small door frames. Even houses built in the early 1800s can make a person of average height by today’s standards wonder how the original occupants managed to stand up and stay conscious long enough to participate in an industrial revolution and a civil war.

For most people, contemporary buildings do not prompt similar claustrophobic concerns. The reason for this difference, as many people have correctly guessed, is that modern humans are taller than those from the eighteenth and nineteenth centuries. In fact, over the last 150 years, the average height of people in industrialized nations has increased by approximately 10 centimeters (about four inches).


Approximately 7 ft / 220 cm tall

But since approximately 1975, there is a sudden spurt in the increase of length but also the tremendous 70%-75% incidence of allergies, autism, and malignancies.

Also, since approximately starting in the mid-1970s,

 » Lees verder

%d bloggers liken dit: