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Author Question: If Herbert, the hair stylist, raises the price of his cuts from 13 to 15 and finds the number of ... (Read 96 times) |
There are more sensory neurons in the tongue than in any other part of the body.
There are more nerve cells in one human brain than there are stars in the Milky Way.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.