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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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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Four main models that describe the relationship between ecosystem function and biodiversity. Four main models that describe the relationship between ecosystem function and biodiversity.
Examples of four different types of cells from the body. Although each cell has a cell membrane, nuc Examples of four different types of cells from the body. Although each cell has a cell membrane, nuc
How to evaluate trigonometric functions when theta is an inverse trigonometric function How to evaluate trigonometric functions when theta is an inverse trigonometric function
How to reflect the quadratic function relative to the x-axis How to reflect the quadratic function relative to the x-axis
Testing motor function of cranial nerve VII - Close both eyes Testing motor function of cranial nerve VII - Close both eyes
How reciprocal functions compare to the parent function How reciprocal functions compare to the parent function
Video: Introduction to Sleep Apnea

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