Health & The Human Body — 35 Lessons
Take a friendly tour of the amazing machine you live in. Meet your heart, blood, brain, kidneys, glands, bones and skin — and learn the simple habits that keep them all working beautifully.
Why We Should Know About Our Body
The opening lesson: why understanding your own body is the first step to staying healthy.
How To Keep Yourself Healthy
Simple, practical habits that protect your health at any age.
A Journey From Sickness To Health
A personal story of recovery and what it teaches about the healing body.
Our Body Is A Universe Within Us
An overview of the trillions of cells and systems working together inside you.
Inside Our Mouth: Digestion Begins
How digestion starts before food even reaches your stomach.
The Tummy: Digestion In Our Body
What happens to food inside the stomach and intestines.
Our Abdomen: House Of Many Organs
A tour of the organs packed inside the abdominal cavity.
The Liver: Our Non-Hormonal Powerhouse
Why the liver is one of the busiest organs in the human body.
The Gallbladder: Small But Mighty
The little sac that stores bile and helps you digest fatty food.
The Spleen: The Quiet Guardian
The organ that filters your blood and supports your immune system.
Kidneys: The Givers, Not Takers
How two fist-sized organs clean your entire blood supply every day.
Strange Filters In Our Body
The many natural filters — kidneys, liver, lungs, skin and lymph — that keep you clean inside.
Our Heart: The Miraculous Engine
The pump that beats around 100,000 times a day without a break.
Blood: Nature's Perfect Transport System
How blood carries oxygen, nutrients, heat and protection everywhere.
The Rh Factor Explained Simply
Why blood is positive or negative, and why it matters in transfusion and pregnancy.
Your Immunity: Part 1
The body's built-in defence force and how it recognises invaders.
Your Immunity: Part 2
Adaptive immunity, antibodies, memory cells and how vaccines work.
The Thymus: Guardian Of Immune Power
The training school for T cells, hidden behind your breastbone.
The Glands: Nature's Invisible Intelligence
An introduction to the gland series and the endocrine system.
The Pituitary Gland: The Master Gland
The pea-sized gland that directs many other glands in the body.
The Hypothalamus: The Body's Thermostat
The small brain region that links the nervous and hormone systems.
The Thyroid: The Engine Of Energy
The butterfly-shaped gland in your throat that sets your body's speed.
The Parathyroid: Guardian Of Our Bones
Four tiny glands that keep calcium levels perfectly balanced.
The Adrenal Glands: Our Inner Strength
The stress glands that sit on top of your kidneys.
The Pineal Gland: The Sleep Clock
The tiny gland that releases melatonin and sets your body clock.
The Sweat Glands: Natural Air Conditioning
How sweating keeps your body temperature safe.
The Brain: A 15–30 Watt Powerhouse
The control centre that runs on less power than a light bulb.
Neural Problems Of Elders
Common nervous-system changes in older age and how to support them.
Your Eyes: Gems Of Gems
How your eyes turn light into everything you see — and how to protect them.
Skin: The Living Blanket Of Protection
The largest organ in the body and your first line of defence.
Our Backbone: The Body's Pillar
The spine that holds you upright and protects your spinal cord.
Bone Density: A Marker Of Mobility
Why strong bones decide how well you move in later life.
Knee Joints: The Bloodless Hinges
Why cartilage has no blood supply and what that means for your knees.
About Human Hair
What hair is made of, how it grows, and what it tells you about health.
Health & Human Body Certificate
Finish all 35 health lessons and pass the health exam with 70% or higher to earn your own Health & Human Body certificate.
Health Certificate Details