New Orleans still bears the scars of Hurricane Katrina, ten years later. More than 500,000 people fled when the storm hit, and many never returned. Large swathes of the city are sparsely populated, particularly in the poor neighbourhoods that suffered the most severe flood damage.

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Nearly 47 million people are living with dementia globally, up from 35 million in 2009.

The Global Burden of Disease Study 2013 (GBD 2013) aims to bring together all available epidemiological data using a coherent measurement framework, standardised estimation methods, and transparent data sources to enable comparisons of health loss over time and across causes, age–sex groups, and countries. The GBD can be used to generate summary measures such as disability-adjusted life-years (DALYs) and healthy life expectancy (HALE) that make possible comparative assessments of broad epidemiological patterns across countries and time.

The World Alzheimer Report 2015: 'The Global Impact of Dementia: An analysis of prevalence, incidence, cost and trends’ finds that there are currently around 46.8 million people living with dementia around the world, with numbers set to increase to 74.7 million by 2030 and 131.5 million by 2050.

The number of people with dementia worldwide will nearly triple from 47 million today to 132 million in 2050, a report said Tuesday.

Non-thermal microwave/lower frequency electromagnetic fields (EMFs) act via voltage-gated calcium channel (VGCC) activation. Calcium channel blockers block EMF effects and several types of additional evidence confirm this mechanism. Low intensity microwave EMFs have been proposed to produce neuropsychiatric effects, sometimes called microwave syndrome, and the focus of this review is whether these are indeed well documented and consistent with the known mechanism(s) of action of such EMFs.

People are getting dementia earlier, with those in their late 40s now regularly diagnosed with the disease.

A ground-breaking Australian study has revealed as many as 10 percent of children suffer a mental health disorder during childhood, with up to one in 13 children considering suicide.

Exposure to ambient air pollution is suspected to cause cognitive effects, but a prospective cohort is needed to study exposure to air pollution at the home address and the incidence of dementia. The researchers aimed to assess the association between long-term exposure to traffic-related air pollution and dementia incidence in a major city in northern Sweden.

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The most long-lasting scars of poverty may not be so easy to spot right away.