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There are more nerve cells in one human brain than there are stars in the Milky Way.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.