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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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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Cyanobacteria of the (a) genus Synechococcus form (b) mats that line hot springs around the world. Cyanobacteria of the (a) genus Synechococcus form (b) mats that line hot springs around the world.
Spectral Line Motion in Binary Star Systems Spectral Line Motion in Binary Star Systems
The engine is rotated until the timing marks on the front of the crankshaft line up with zero ... The engine is rotated until the timing marks on the front of the crankshaft line up with zero ...
Schematic illustration of Myers and Sperry’s (1953) groundbreaking split-brain experiment. There ... Schematic illustration of Myers and Sperry’s (1953) groundbreaking split-brain experiment. There ...
How to find the equation of a line that is perpendicular to a line passing through a point How to find the equation of a line that is perpendicular to a line passing through a point
Rosenthal and Fode’s Rat Experiment Rosenthal and Fode’s Rat Experiment
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

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