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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

A comparison of alloploidy (seen in species hybrids) and new allopolyploid species. A comparison of alloploidy (seen in species hybrids) and new allopolyploid species.
Species-rich floras of chalk grassland compared to species-poor floras of acid soils. Species-rich floras of chalk grassland compared to species-poor floras of acid soils.
A diversity of species live within the soils, the ecology of which remains to be explored. A diversity of species live within the soils, the ecology of which remains to be explored.
Human hemoglobin variants Human hemoglobin variants
Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re
The Human Genetic Code The Human Genetic Code
Video: Structure of a Ribosome

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