Human Body Advanced — 35 Lessons
How the world is powered and built, explained simply. Oil, gas and petrol prices, electricity and nuclear power, batteries and solar, water and desalination, railways, bridges and giant megaprojects.
Why Study Glands? The Body's Hidden Factories
An introduction to the tiny factories that keep the body running.
Hormones: The Body's Silent Chemical Messengers
How chemical signals travel through the blood to give instructions.
The Master Lab: How the Body Controls Its Glands
The pituitary and brain team that supervises the endocrine system.
Oil Glands: Natural Protection for Your Skin
Sebaceous glands, healthy skin and why teenagers get spots.
Wax Glands: The Watchman at the Ear
Why ear wax exists and why you should not poke it out.
Mucous Glands: Tiny Guards in Every Passage
The slippery layer protecting your nose, throat and gut.
Why Do We Cry? The Story of Tear Glands
Tears that clean, tears that protect and tears that come with feelings.
Mammary Glands: A World Without Milk
The gland that defines mammals and feeds every newborn.
The Code of Life: DNA Inside Every Cell
The instruction book copied into almost every cell of your body.
The Brain: The Most Mysterious Organ
Eighty-six billion cells that make thought, memory and personality.
The Heart: The Body's Most Powerful Pump
A muscle the size of a fist that never takes a day off.
Nerves: The Living Wires Inside Us
Electrical cables that carry signals at astonishing speed.
The Spinal Cord: A Highway of Light
The protected cable linking brain and body — and why posture matters.
The Living Highway: Circulation Around the Body
How blood delivers oxygen and collects waste, non-stop.
Arteries and Veins: The Body's Transport System
Two kinds of pipe with two very different jobs.
The Breath of Life: Lungs and Breathing
Twenty thousand breaths a day and the muscle that drives them.
The Abdomen: The Grand Trunk of Life
The busy region holding digestion, filtering and storage organs.
Surprising Facts About the Gallbladder
A small green bag that helps you digest fatty food.
The Immune System: A Silent Army of Protection
Cells that patrol, remember and defend you every single day.
Skin: The Living Blanket of Protection
The largest organ you own, and how to look after it.
Hair Part 1: Dead Tissue That Still Protects
How hair grows, what it is made of and why it matters.
Hair Part 2: Colour, Loss and Care
Why hair greys, why it falls, and simple healthy habits.
Beauty, Identity and Uniqueness
Fingerprints, features and why no two people are the same.
Your Eyes Part 1: Doorways to the World
How light becomes a picture inside your head.
Your Eyes Part 2: Protecting Your Sight
Screens, sunlight and daily habits that keep eyes healthy.
Eyes: Priceless Gems of the Body
Why sight is treasured and how vision problems are corrected.
Thirty-Two Teeth: The First Gift of Life
How teeth are built, what damages them and how to keep them.
Hands: Nothing Is Possible Without Them
Twenty-seven bones, fine control and the human grip.
What Can You Do Without Hands?
Adaptation, assistive tools and respect for different abilities.
Our Knees: The Silent Sufferers
The joint that carries your weight for a lifetime.
The Foot: Foundation of Our Life
Twenty-six bones that balance and carry the whole body.
The Reproductive System Explained
A clear, science-based introduction to how new life begins.
Reproduction: How Life Continues
Cells, inheritance and the continuation of every species.
Ovaries and Testes: Glands That Shape Growth
The reproductive glands and the hormones they release.
Human Body Advanced Certificate
Finish all 35 human body lessons and pass the human body exam with 70% or higher to earn your own Human Body Advanced certificate.
Take the Human Body Exam