Sharp Brains: Brain Fitness and Cognitive Health News

Neuroplasticity, Brain Fitness and Cognitive Health News

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Brain Resources and Websites

We recent­ly pre­pared a Direc­to­ry of Web Sites as part of our Resources sec­tion. You will find some gems here, in a vari­ety of areas:

» The Dana Foun­da­tion offers sev­er­al excel­lent online resources:

- Brainy Kids Online offers chil­dren, teens, par­ents and teach­ers links to games, labs, edu­ca­tion resources and les­son plans.

- Brain­Web: gen­er­al infor­ma­tion about the brain and cur­rent brain research, as well as links to val­i­dat­ed sites relat­ed to more than 25 brain dis­or­ders.

- Brain Resources for Seniors pro­vides old­er adults and their care­tak­ers with links to sites relat­ed to brain health, edu­ca­tion and gen­er­al infor­ma­tion.

Read the rest of this entry »

Build Your Cognitive Reserve: An Interview with Dr. Yaakov Stern

Yaakov SternDr. Yaakov Stern is the Divi­sion Leader of the Cog­ni­tive Neu­ro­science Divi­sion of the Sergievsky Cen­ter, and Pro­fes­sor of Clin­i­cal Neu­ropsy­chol­o­gy, at the Col­lege of Physi­cians and Sur­geons of Colum­bia Uni­ver­si­ty, New York. Alvaro Fer­nan­dez inter­views him here as part of our research for The Sharp­Brains Guide to Brain Fit­ness book.

Dr. Stern is one of the lead­ing pro­po­nents of the Cog­ni­tive reserve the­o­ry, which aims to explain why some indi­vid­u­als with full Alzheimer’s pathol­o­gy (accu­mu­la­tion of plaques and tan­gles in their brains) can keep nor­mal lives until they die, while oth­ers -with the same amount of plaques and tan­gles- dis­play the severe symp­toms we asso­ciate with Alzheimer’s Dis­ease. He has pub­lished dozens of peer-reviewed sci­en­tif­ic papers on the sub­ject.

The con­cept of a Cog­ni­tive Reserve has been around since 1989, when a post mortem analy­sis of 137 peo­ple with Alzheimer’s Dis­ease showed that some patients exhib­it­ed few­er clin­i­cal symp­toms than their actu­al pathol­o­gy sug­gest­ed. These patients also showed high­er brain weights and greater num­ber of neu­rons when com­pared to age-matched con­trols. The inves­ti­ga­tors hypoth­e­sized that the patients had a larg­er “reserve” of neu­rons and abil­i­ties that enable them to off­set the loss­es caused by Alzheimer’s. Since then, the con­cept of Cog­ni­tive Reserve has been defined as the abil­i­ty of an indi­vid­ual to tol­er­ate pro­gres­sive brain pathol­o­gy with­out demon­strat­ing clin­i­cal cog­ni­tive symp­toms. (You can check at the end of this inter­view a great clip on this).

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Key take-aways

- Life­time expe­ri­ences, like edu­ca­tion, engag­ing occu­pa­tion, and leisure activ­i­ties, have been shown to have a major influ­ence on how we age, specif­i­cal­ly on whether we will devel­op Alzheimer’s symp­toms or not.

- This is so because stim­u­lat­ing activ­i­ties, ide­al­ly com­bin­ing phys­i­cal exer­cise, learn­ing and social inter­ac­tion, help us build a Cog­ni­tive Reserve to pro­tect us.

- The ear­li­er we start build­ing our Reserve, the bet­ter; but it is nev­er too late to start. And, the more activ­i­ties, the bet­ter: the effect is cumu­la­tive.

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The Cog­ni­tive Reserve

Alvaro Fer­nan­dez (AF): Dear Dr. Stern, it is a plea­sure to have you here. Let me first ask you this: the impli­ca­tions of your research are pret­ty broad, pre­sent­ing major impli­ca­tions across sec­tors and age groups. What has been the most unex­pect­ed reac­tion so far?

YS: well…I was pret­ty sur­prised when Read the rest of this entry »

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As seen in The New York Times, The Wall Street Journal, BBC News, CNN, Reuters and more, SharpBrains is an independent market research firm tracking health and performance applications of brain science.

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