When asleep smelling is limited. Research on this continues but noise definitely disrupts sleep
The brain consumes about 20% of your energy but it is only about 3% of your body weight. You, therefore, use way more than 20% of your brain at any one time.
The airway that air takes to your lungs, is the same your food takes to the stomach.
A human hand has 27 bones, plus two more forming the wrist joint
The neck has two bones; the cervical spine and the hyoid bone
Fingers have no muscles. The muscles which bend the finger joints are located in the palm
The sense of smell is a key component of how we identify people when we are close to them.
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