Author Archive

Mar
09

Need A New Kidney? Print It.

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In a few years time, this will be our daily reality.

Categories : Health, Science
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A chang­ing envi­ron­ment puts pres­sure on the phar­ma­ceu­ti­cal indus­try to reshape its busi­ness model.

NY Times Drug Firms Face Bil­lions in Losses as 2011 Patents end.

 

Categories : Health
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Feb
17

The Business of Defining Mental Illness

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How do you define men­tal ill­ness? Can you define it in the first place? On what basis (symp­toms, or ‘some­thing’ else)?  How to assess ill­ness in the absence of observ­able matter?

The ques­tion is not sim­ply rhetor­i­cal. Beyond the issue of diag­nos­ing and giv­ing a name to an ill­ness in the absence of phys­i­cal proof of it, bil­lions of dol­lars are spent every year based on whether symp­toms have offi­cially been defined as dis­ease, or not. And the bible of men­tal ill­ness is what is com­monly known as the DSM, Amer­i­can Psy­chi­atric Association’s Diag­nos­tic and Sta­tis­ti­cal Man­ual of Men­tal Dis­or­ders.

The DSM aver­ages $6.5 mil­lion in sales each year. And not only that. “The book is the basis of psy­chi­a­trists’ author­ity to pro­nounce upon our men­tal health, to com­mand health care dol­lars from insur­ance com­pa­nies for treat­ment and from gov­ern­ment agen­cies for research. It is as impor­tant to psy­chi­a­trists as the Con­sti­tu­tion is to the US gov­ern­ment or the Bible is to Chris­tians. Out­side the pro­fes­sion, too, the DSM rules, serv­ing as the author­i­ta­tive text for psy­chol­o­gists, social work­ers, and other men­tal health work­ers; it is invoked by lawyers in argu­ing over the cul­pa­bil­ity of crim­i­nal defen­dants and by par­ents seek­ing school ser­vices for their chil­dren”. Read More→

Categories : Health
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THis is the tran­script of Nicholas Chris­takis’ Ted Talks video on how social net­works shape our lives.
You can see the inter­ac­tive tran­script on the Ted web­page.

For me, this story begins about 15 years ago, when I was a hos­pice doc­tor at the Uni­ver­sity of Chicago. And I was tak­ing care of peo­ple who were dying, and their fam­i­lies, in the South Side of Chicago. And I was observ­ing what hap­pened to peo­ple and their fam­i­lies over the course of their ter­mi­nal ill­ness. And in my lab, I was study­ing the wid­ower effect, which is a very old idea in the social sci­ences, going back 150 years, known as “dying of a bro­ken heart.” So, when I die, my wife’s risk of death can dou­ble, for instance, in the first year. And I had gone to take care of one par­tic­u­lar patient, a woman who was dying of demen­tia. And, in this case, unlike this cou­ple, she was being cared for by her daugh­ter. And the daugh­ter was exhausted from car­ing for her mother. And the daughter’s hus­band, he also was sick from his wife’s exhaus­tion. And I was dri­ving home one day, and I get a phone call from the husband’s friend, call­ing me because he was depressed about what was hap­pen­ing to his friend. So here I get this call from this ran­dom guy that’s hav­ing an expe­ri­ence that’s being influ­enced by peo­ple at some social distance.

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Categories : Communication, Science
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Nicholas Chris­takis stud­ies the sub­tle influ­ence of large social net­works on our lives. He came up with aston­ish­ing dis­cov­er­ies.
One sur­pris­ing exam­ple is obe­sity.
Look­ing at the spread of obe­sity in large social net­works, he found that there are clear clus­ters of obe­sity. In short, if your friends are fat, you are more likely to be fat. So far so good, this is under­stand­able: you tend to go out with your friends, eat in the same places, share the same activ­i­ties etc…
But what is unex­pected is that the clus­ter extend to 3 degrees of sep­a­ra­tion! In short, your friends’ friends’ friends can make you fat!
Watch the Ted Talks video below for more.

Categories : Health, Science, Video
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