Summary
The human body is made up of 37 trillion cells or so, in four main types of tissue. They're found in 78 organs, including the vital heart, brain, kidneys, liver, and lungs, and nearly a dozen systems – from the circulatory to the digestive, immune, muscular and skeletal. Learn how the body’s parts work, what could go wrong, and how best to keep them healthy for a lifetime....more
Explainers
Central nervous system
What is neuroplasticity and how can we promote it?
What You Need To Know
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Central nervous system
Circulatory system
Reproductive system
Sensory systems
Immune system
Urinary system
Organs
Systems
Appendages
Limbs
Digestive system
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In Numbers
Skin has a total area of around 2 square metres and accounts for about
15%
of our body weight
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Adults typically take around
20,000 breaths
a day according to the American Lung Association
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A fifth taste, umami, was identified in
1908
by Japanese scientist Kikunae Ikeda, a Tokyo Imperial University professor
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