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Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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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.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Self-sealing property Self-sealing property
The path of blood flow through the chambers of the left and right side of the heart, including the v The path of blood flow through the chambers of the left and right side of the heart, including the v
Continuous positive airway pressure (CPAP) device. The sleeping subject is receiving the benefits of Continuous positive airway pressure (CPAP) device. The sleeping subject is receiving the benefits of
Mechanical ventilation. The photograph shows a patient receiving breathing assistance by the use of Mechanical ventilation. The photograph shows a patient receiving breathing assistance by the use of
Distribution of the Property of Americans Distribution of the Property of Americans
Darius And Xerxes Receiving Tribute Darius And Xerxes Receiving Tribute
Video: Burn Animation

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