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El cerebro envejece, al igual que el resto del cuerpo, incluso para aquellos no padecen una enfermedad neurológica, de acuerdo con un Instituto de Medicina.

"Algunos de los cambios que uno observa, no significa que todo ha terminado con tristeza y fatalidad", según dijo al Washington Post Kristine Yaffe, MD, vicepresidente de la comisión.

Si bien el envejecimiento afecta más a unos que a otros, la mayoría de las personas pueden tomar medidas para mejorar su salud, de acuerdo con Yaffe, director y profesor de psiquiatría, neurología y epidemiología en la Universidad de California en San Francisco y director de psiquiatría geriátrica y director de la Clínica de Trastornos de la Memoria en el Centro Médico VA de San Francisco.

Pesticides such as as neonicotinoids are already under close scrutiny because research appears to show that, certainly for honey bees at least, they may interrupt the insect’s normal behaviors and they are suspected to play a part in colony collapse disorder.

The month of May brings many things, among them Mother’s Day, tulips, and Lyme Disease Awareness campaigns. But according to Dr. Richard S. Ostfeld, a disease ecologist at the Cary Institute of Ecosystem Studies in Millbrook, NY, if we want to get a leg up on tick-borne illness we need to become vigilant earlier in the season.

Four years of devastating droughts in California have pushed cities and counties in the Golden State to seriously consider turning to the one drinking source that is not depleting anytime soon – seawater. With the Pacific Ocean abutting their shores, water desalination may be the much-needed solution for Californians. But desalination has its disadvantages, the chief ones being the high costs and the potential environmental damage.

Hazardous chemicals are a vital part of many industries, but lax and inconsistent safety standards put workers' health and lives at risk all over the world, writes Christian Friis Bach. 

Christian Friis Bach is Under Secretary-General of the United Nations and Executive Secretary of the United Nations Economic Commission for Europe.

Millions of workers are exposed every day to hazardous chemicals around the globe, in developing and developed countries. These chemicals are purchased and shipped from all over the world and differences in language and labelling could make them even more dangerous. However, thanks to a true success story of international cooperation, the danger is abating every day. This is worth celebrating on the World Day for Safety and Health at Work