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We live in a time of information abundance, which far too many of us see as information overload. With the sum total of human knowledge, past and present, at our fingertips, we’re faced with a crisis of attention: which ideas should we engage with, and why? Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

A word about Big Ideas and Themes — The architecture of Big Think

Big ideas are lenses for envisioning the future. Every article and video on bigthink.com and on our learning platforms is based on an emerging “big idea” that is significant, widely relevant, and actionable. We’re sifting the noise for the questions and insights that have the power to change all of our lives, for decades to come. For example, reverse-engineering is a big idea in that the concept is increasingly useful across multiple disciplines, from education to nanotechnology.

Themes are the seven broad umbrellas under which we organize the hundreds of big ideas that populate Big Think. They include New World Order, Earth and Beyond, 21st Century Living, Going Mental, Extreme Biology, Power and Influence, and Inventing the Future.

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How Eating a Poor Diet Makes Us Feel Depressed

August 27, 2014, 12:16 PM

Scientists are finding that when it comes to nutrition, the mind and body are linked far more intimately than previously believed. Recent studies have found that eating unhealthy foods, especially those high in sugar and fat, contribute directly to the biological and emotional states associated with depression. When we eat poorly, our body understands a lack of nutrients to be the consequence of a disease. In response, it releases proteins that attempt to combat the perceived intruder and cause subtle inflammation (similar to the swelling of a healing wound).

One study focused on a southern European population that slowly transitioned from the Mediterranean diet--rich in oils, vegetables, and nuts--to a western diet containing more sugar and fat. 

It found that "those who lived almost exclusively on the traditional Mediterranean diet were about half as likely to develop depression over the period as those eating more unhealthy food – even when you control for things like education and economic status."

Many initiatives are currently underway to treat depression with healthier diets, including a trial program by the Defense Department that delivers nutrient rich foods to soldiers diagnosed with PTSD. In other cases, eating a healthy diet has proved to be an effective preventative measure against developing depression--as effective as preventative mental health counseling!

In his Big Think interview, fiction writer and animals rights advocate Jonathan Safran Foer explains that the environmental cost of one fast-food hamburger is $500, even though we may only pay $5 cash for it. 

Read more at BBC Future

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