Health

Older adults need more help navigating health care system

(HealthDay)—More than half of older nonretired adults need help understanding their health insurance benefits, according to a survey conducted by The Harris Poll on behalf of Anthem Inc. and the National Association of ...

Vaccination

Californians strongly back vaccine law in new statewide poll

Californians strongly support a state law creating new oversight of vaccine medical exemptions for schoolchildren in a statewide poll released Monday, with backing across a spectrum of political affiliations, income and education ...

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Pollution

Pollution is the introduction of contaminants into a natural environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the elements of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues an annual list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

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