Sleep the full, science-first (but chill) guide Sleep isn’t just “lights off, brain off.” It’s a dynamic, actively regulated parade of brain states that repair, prune, rehearse, and remix your memories, emotions, and body. Below is a detailed but readable walkthrough of the stages, the key brain machinery (yes — the pons and medulla do […]
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An accurate walk-through of how the female reproductive system is built and how it actually works — periods, ovulation, where eggs and hormones come from, how conception happens (or doesn’t), and what can mess it up. Science-forward, plain-English, and mildly stunned that biology actually pulled this off. Quick TL;DR Period = shedding of the uterine
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The Male Reproductive System — a clear, science-first guide (but chill) An accurate walk-through of how the male reproductive system is built and how it actually works — peeing, erections, where sperm and semen come from, how everything coordinates, and what can mess it up. Science-forward, plain-English, and a little goofy because anatomy is wild.
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What is a cell? A cell is the smallest living unit that can carry out all life’s basic functions — think of it as the tiny factory that makes you, you. Every cell can take in nutrients, produce energy, copy its DNA, respond to the environment, and (usually) reproduce. Organisms can be single-celled (bacteria, yeast)
