3
Human evolution
is influenced by
light
Light played a fundamental role in evolution, civilizations
revolved around daylight.
Our ancestors didn’t have artificial lighting. They adapted their
biological clock to the rhythm of day and night. But with
electricity our working and living patterns have changed.
We’ve become hugely dependent on artificial light – to the
detriment of our physical and psychological health, and our
overall productivity.
A U S T R A L O P I T H E C U S
4 M I L L I O N Y E A R S A G O
H O M O E R E C T U S
1 . 8 T O 1 . 5 M I L L I O N
Y E A R S A G O
H O M O N E A R D E N T H A L E N S I S
1 2 0 0 T O 1 6 0 0 C C
H O M O S A P I E N S
1 . 6 M I L L I O N Y E A R S A G O
T O D A Y
H O M O H A B I L I S
2 . 5 T O 1 . 4 M I L L I O N
Y E A R S A G O
I N D O O R G E N E R A T I O N
L I G H T & W E L L - B E I N G
01
02
03
04
