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.
Did you know?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
White tiger in water at the Singapore Zoo
Water Molecules
Air pressure under water
Water, Hydrogen, Methane
Main Types of Dietary Lipids
Main components of the human endocrine system and the effects of their secretions