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Cyanide works by making the human body unable to use oxygen.

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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

A leech, a member of the class Hirudinea. A leech, a member of the class Hirudinea.
The nuse works within the cultural mores of American families. The nuse works within the cultural mores of American families.
Blood Group Identification by Antigen and Antibody Blood Group Identification by Antigen and Antibody
Nuts are also a good source of B group vitamins (including folate), and vitamin E Nuts are also a good source of B group vitamins (including folate), and vitamin E
Group of Bees Group of Bees
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Video: Introduction to Insulin

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