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Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

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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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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Illustration showing how the primary breast tumor metastasized through the lymphatic and blood vesse Illustration showing how the primary breast tumor metastasized through the lymphatic and blood vesse
The Primary Visual Pathway The Primary Visual Pathway
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The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ... The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ...
Patient diagnosed with type 2 diabetes mellitus. Periodontal examination revealed deep periodontal ... Patient diagnosed with type 2 diabetes mellitus. Periodontal examination revealed deep periodontal ...
Cycads, a Type of Gymnosperm Cycads, a Type of Gymnosperm
Video: Condensation and Hydrolysis Animation

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