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Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Structures of the respiratory tract. Structures of the respiratory tract.
Layers of the Digestive Tract Wall Layers of the Digestive Tract Wall
Conserved sequences in promoters recognized by E. coli RNA polymerase Conserved sequences in promoters recognized by E. coli RNA polymerase
Modification steps (1–4) that occur in maturation of E. coli tRNATyr from its transcript Modification steps (1–4) that occur in maturation of E. coli tRNATyr from its transcript
E. coli O157: H7 is the strain of E. coli bacteria that causes the most foodborne illness E. coli O157: H7 is the strain of E. coli bacteria that causes the most foodborne illness
Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems, Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems,
Video: Retina

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