The Stretch Modern Humans Need Back.

The Secret Women Never Say #relationships #humanbehavior #psychology #attraction

1. He said that before the industrial era, nobody slept 8 hours in one block. People slept in two parts: they went to bed after sunset, woke up around midnight, stayed awake for 1–2 hours, then went back to sleep. This “split sleep” was normal for thousands of years. But when factories appeared in the 19th century, society forced everyone into one long sleep window — and the body never fully adapted. He said the modern schedule confuses the brain: it doesn’t understand when it should rest and wh

How Test Tube Babies Are Made? #ivf #pregnancy #shorts

Ancient Egyptians’ 12-Knot Rope Math That Changed The World

Key Differences Between Male and Female Skeletons | Human Skeletal Anatomy

15 Introduction to Puppy Play

5 Puppy Training Exercises You Should Do EVERY DAY At Home! - Living Room Lessons