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The human body | Brainforage
The human body
Questions in this topic
How fast does a nerve signal actually travel?
Difficulty 3
Why does your stomach growl, even when you are not hungry?
Difficulty 2
Why is your outer skin basically brand new every month?
Difficulty 2
How can bone beat steel when a hammer snaps it?
Difficulty 3
How can a liver grow back from just a quarter of itself?
Difficulty 2
Are you really outnumbered 10 to 1 by your own gut bacteria?
Difficulty 3
Does the tip of your tongue really only taste sweet?
Difficulty 2
Do babies really have more bones than adults?
Difficulty 1
Why can a broken bone heal but chipped tooth enamel never grows back?
Difficulty 2
How long does one red blood cell take to circle your whole body?
Difficulty 2
Why doesn't your stomach digest itself?
Difficulty 3
Why do identical twins still have different fingerprints?
Difficulty 2
Why should you stop cleaning your ears with cotton swabs?
Difficulty 1
Why do you get goosebumps when you are cold or scared?
Difficulty 2
Why does the clear front of your eye have no blood in it?
Difficulty 3
When you build muscle memory for a skill, where is the memory actually kept?
Difficulty 3
How much spit does your mouth make in a single day?
Difficulty 2
Is 37C really your normal body temperature?
Difficulty 3
What is actually moving when you hiccup?
Difficulty 2
Why is your left lung smaller than your right?
Difficulty 2
Why can't you see right away when the lights go out?
Difficulty 2
How much of your waking day do you spend with your eyes shut?
Difficulty 2
Why does your body have a hidden blood bank inside the spleen?
Difficulty 3
Are you really breathing through both nostrils right now?
Difficulty 3