Color psychology shows red increases heart rate and appetite, while blue promotes calm and focus.
Fact #5031
👍 0 · 👎 0
More Human Body Facts
The invention of dialysis allows patients with kidney failure to survive.
Fact #1219 · Human Body
In 1920, a town in Minnesota briefly elected a bear as mayor in a publicity stunt.
Fact #773 · Human Body
The human body contains trillions of cells.
Fact #90 · Human Body
The Empire State Building was completed in just over a year.
Fact #1512 · Human Body
The Sumerians developed one of the earliest writing systems.
Fact #599 · Human Body
The human heart has four chambers.
Fact #306 · Human Body
Camels have specialized red blood cells that help them survive dehydration.
Fact #856 · Human Body
Octopuses have three hearts and blue blood.
Fact #1674 · Human Body
Want more facts?
We have over 11,491 facts across 16 categories.