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Author Question: A company has a motivational speaker come into the office. The speaker asks all of the employees to ... (Read 135 times) |
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
The familiar sounds of your heart are made by the heart's valves as they open and close.
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.