Human
The thumb is such a major player in the human body
that it has a special section, separate from the area that
controls the fingers, reserved for it in the brain.
You can't kill yourself by holding your breath. At worst,
you would lose consciousness and the lungs would start to breath automatically.
Children as young as four days old can distinguish the vowel
sounds of the language in their natural environment from those of a foreign
language.
The skeleton of an average 160 pound body weighs about 29 pounds
The simple act of walking requires the use of 200 muscles
in the human body. 40 or so will lift your leg and move it forward.
A bowl of lime Jell-O, when hooked up to an EEG machine,
exhibited movement which is virtually identical to
the brain waves of a healthy adult man or woman.
You will get fewer cavities if you eat
a bag of candy in onesitting and then brush your teeth than if you slowly
eat the candy a piece at a time all day
The size of your foot is approximately the size of your forearm
The swine flu vaccine in 1976 caused more death and
illness than the disease it was intended to prevent.
Women reject heart transplants more often than men.
You blink every 2-10 seconds. As you focus on each word in
this sentence, your eyes swing back and forth 100 times a second,
and every second, the retina performs 10 billion computer-like calculations
The average adult has between 40 and 50 billion fat cells
The short-term memory capacity for most people is between
five and nine items or digits. This is one reason that phone
numbers were kept to seven digits (not including area code).
The average adult stands 0.4 inch (1 cm) taller in the morning
than in the evening, because the cartilage in the spine compresses during
the day.
The indentation in the middle area between the nose
and the upper lip is called the Philtrum. Ancient Greeks considered
this to be one of the body's most erogenous zones.
Synesthesia is a rare condition in which the senses are
combined. Synesthetes see words, taste colors and shapes, and feel flavors.
The substance that human blood resembles most
closely in terms of chemical composition in sea water.
