How the body works

Is there a theoretical upper limit to human life? © Moron Eel

Is there a theoretical upper limit to human life?

Is it possible to get pregnant when you’re already pregnant? © Getty Images

Is it possible to get pregnant when you’re already pregnant?

Cancer Cell disease types breast cancer research skin symptoms 3D rendering © Getty Images

The Immunotherapy Revolution

What if humans had chlorophyll in their skin? © Moron Eel

Thought experiment: What if humans had chlorophyll in their skin?

The Story of S*** by Midas Dekkers is out now (£12.99, Text Publishing)

Five reasons to be positive about poo

If we only have one trachea, why do we have two nostrils? © Getty Images

If we only have one trachea, why do we have two nostrils?

What are the top 10 elements in the human body? © Getty Images

What are the top 10 elements in the human body?

What happens in my body when I get a stitch? © Getty Images

What happens in my body when I get a stitch?

Why can't everyone roll their 'r's?

Why can’t everyone roll their ‘r’s?

Why does stretching feel so good? © Getty Images

Why does stretching feel so good?

Why do we rub our faces when we're tired? © Getty Images

Why do we rub our faces when we’re tired?

How to fall to your death and live to tell the tale © Dave Imms

How to fall to your death and live to tell the tale

How does our appearance change as we age? © Getty Images

How does our appearance change as we age?

What happens in my body when I get food poisoning? © Getty Images

What happens in my body when I get food poisoning?