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Kak zapadnaya dieta privodit k kognitivnomu spadu, a on — k ozhireniyuNepoladki v rabote mozga mogut vizvatj pereedanie ...
26/08/2022

Kak zapadnaya dieta privodit k kognitivnomu spadu, a on — k ozhireniyu
Nepoladki v rabote mozga mogut vizvatj pereedanie i postoyannie perekusi. Viyasnili, kak zapadnaya dieta vliyaet na pamyatj i risk vozniknoveniya raka.
Chto takoe zapadnaya dietaZapadnoj dietoj prinyato nazivatj pitanie, v kotorom mnogo nasischennih zhirov i sahara, krasnogo i obrabotannogo myasa, vipechki iz rafinirovannoj muki i fastfuda. Krome togo, takoj racion vklyuchaet malo ovoschej i fruktov, celjnozernovih i molochnih produktov.Tochnoe kolichestvo uslovno poleznih i vrednih komponentov dieti ne ukazivaetsya, no mozhno primerno opredelitj ih s oglyadkoj na rekomendaciiHealthy diet / World Health Organization VOZ.Zapadnoj dietoj mozhno schitatj pitanie, pri kotorom: Obschee kolichestvo zhirov v diete previshaet 30% ot sutochnogo potrebleniya kalorij. Nasischennie zhiri iz myasa i molochnoj produkcii previshayut 10% ot sutochnogo potrebleniya kalorij. Sahar sostavlyaet bolee 10% ot obschego kolichestva kalorij v denj. Potreblyaetsya menee 400 g fruktov i ovoschej v denj. Takoj tip pitaniya priznayut nezdorovim, poskoljku on uvelichivaet risk insuljta, raka kishechnika, zabolevaniya pochek i disfunkcii immunnoj sistemi.Bolee togo, on mozhet udaritj po kognitivnim funkciyam — processam mozga, blagodarya kotorim mi vosprinimaem, obrabativaem i zapominaem informaciyu, stroim plani i sderzhivaem porivi.Kak zapadnaya dieta vliyaet na kognitivnie funkciiZapadnaya dieta ne luchshim obrazom skazivaetsya na rabote mozga, pritom v lyubom vozraste.V odnom eksperimenteN. Riggs, C. P. Chou, D. Spruijt‑Metz. Executive cognitive function as a correlate and predictor of child food intake and physical activity / Child Neuropsychology u detej 7–9 let, potreblyayuschih mnogo snekov i malo fruktov i ovoschej, otmetili snizhenie nekotorih kognitivnih funkcij, vklyuchaya tormozyaschij kontrolj, kotorij podavlyaet nezhelateljnie stimuli, sposobnostj k planirovaniyu i organizacii.V dvuh drugih issledovaniyah otmetili1. N. A. Khan, C. L. Baym, J. M. Monti. Central adiposity is negatively associated with hippocampal‑dependent relational memory among overweight and obese children / The Journal of Pediatrics 2. C. L. Baym, N. A. Khan, J. M. Monti. Dietary lipids are differentially associated with hippocampal‑dependent relational memory in prepubescent children / The American Journal of Clinical Nutrition uhudshenie pamyati u detej s ozhireniem i visokim procentom zhirov v pitanii.V eschyo odnom eksperimenteA. J. Jasinska, M. Yasuda, C. F. Burant. Impulsivity and inhibitory control deficits are associated with unhealthy eating in young adults / Appetite proverili sposobnosti molodih lyudej — studentov kolledzha. Okazalosj, chto te, kto est boljshe chipsov, drugih snekov i shokoladnih batonchikov i menjshe fruktov i ovoschej, huzhe kontroliruyut vnimanie i motornie reakcii, chem priverzhenci zdorovogo pitaniya.V drugom eksperimenteH. M. Francis, R. J. Stevenson. Higher reported saturated fat and refined sugar intake is associated with reduced hippocampal‑dependent memory and sensitivity to interoceptive signals / Behavioral Neuroscience studenti, predpochitayuschie zapadnuyu dietu, demonstrirovali hudshie rezuljtati v zadachah na logiku i pamyatj — funkcii, svyazannie s rabotoj gippokampa.Ne luchshe obstoyat dela s pozhilimi lyudjmi. Pischa s visokim soderzhaniem nasischennih zhirov uvelichivaetM. H. Eskelinen, T. Ngandu, E. L. Helkala. Fat intake at midlife and cognitive impairment later in life: a population‑based CAIDE study. International Journal of Geriatric Psychiatry risk kognitivnih narushenij v preklonnom vozraste, a ozhirenie snizhaetJ. I. Cohen, K. F. Yates, M. Duong. Obesity, orbitofrontal structure and function are associated with food choice: a cross‑sectional study / BMJ Open vnimanie i sposobnostj k koncentracii, zamedlyaet obrabotku informacii.Pritom dlya uhudsheniya poznavateljnih funkcij ne obyazateljno pitatjsya tak dolgie godi — dazhe neskoljko dnej na zapadnoj diete mogut negativno skazatjsya na rabote mozga. Tak, v odnom eksperimenteT. Attuquayefio, R. J. Stevenson, M. J. Oaten. A four‑day Western‑style dietary intervention causes reductions in hippocampal‑dependent learning and memory and interoceptive sensitivity / PLoS One vsego chetire zavtraka s visokim kolichestvom nasischennih zhirov i sahara snizili rezuljtati v testah na raznie vidi pamyati.V odnoj nauchnoj rabote predpolozhiliT. L. Davidson, S. Jones, M. Roy, R. J. Stevenson.The Cognitive Control of Eating and Body Weight: It’s More Than What You “Think” / Frontiers in Psychology, chto kognitivnij spad ot zapadnoj dieti v boljshej stepeni zavisit ot gippokampa — strukturi mozga, kotoraya uchastvuet v hranenii pamyati, formirovanii emocij i prostranstvennoj orientacii. Vot neskoljko vozmozhnih mehanizmov: Umenjshenie nejrogeneza. Visokoe potreblenie nasischennih zhirov i sahara snizhaet formirovanie novih nejronov v gippokampe. Uvelichennaya pronicaemostj gematoencefalicheskogo barjera (GEB). Eta sistema reguliruet transportirovku pitateljnih veschestv i zaschischaet mozg ot nejrotoksichnih substancij. Pri ozhirenii nablyudayut povishennuyu pronicaemostj GEB, chto v perspektive mozhet privoditj k nedostatku pitaniya mozga. Vospalenie. Zapadnaya dieta sposobstvuet ego vozniknoveniyu i razvitiyu, i eto mozhet narush*tj rabotu gippokampa. Narushenie transporta glyukozi. Dlya raboti mozgu neobhodima glyukoza, i eyo perenos v mozg zavisit ot transportera glyukozi 1 (GLUT‑1). Dieta s visokim soderzhaniem zhirov snizhaet ego kolichestvo, chto mozhet negativno skazatjsya na poznavateljnih funkciyah. Rezistentnostj k insulinu. Nezdorovoe pitanie mozhet umenjshatj transport insulina v mozg, snizhaya epizodicheskuyu pamyatj. Takim obrazom, zapadnaya dieta mozhet snizhatj kognitivnie funkcii, chto v svoyu ocheredj meshaet kontrolirovatj pischevoe povedenie.Kak snizhenie kognitivnih funkcij svyazano s appetitom i vesomEsli bi reshenie poestj ili vibor edi zavisel toljko ot fiziologicheskoj potrebnosti v energii, malo kto stradal bi ot lishnego vesa. V realjnoj zhizni zhe pischevoe povedenie zavisitT. L. Davidson, S. Jones, M. Roy, R. J. Stevenson.The Cognitive Control of Eating and Body Weight: It’s More Than What You “Think” / Frontiers in Psychology ot mnogih faktorov: Ozhidaniya. V odnom eksperimenteR. Raghunathan, R. W. Naylor, W. D. Hoyer. The unhealthy = tasty intuition and its effects on taste inferences, enjoyment, and choice of food products / Journal of Marketing lyudi poschitali edu s pometkoj «zdorovaya» menee vkusnoj, v drugomL. Schmidt, V. Skvortsova, C. Kullen. How context alters value: the brain’s valuation and affective regulation system link price cues to experienced taste pleasantness / Scientific Reports vishe ocenili «dorogoe» vino, hotya na samom dele ono ne otlichalosj ot «deshyovogo». Pamyatj. Vospominaniya o tom, sitnaya eda ili net, mogutM. A. Irvine, J. M. Brunstrom, P. Gee. Increased familiarity with eating a food to fullness underlies increased expected satiety / Appetite povliyatj na kolichestvo sjedennogo. V odnom eksperimenteS. Higgs. Memory for recent eating and its influence on subsequent food intake / Appetite viyasnili, chto, kogda lyudyam napominayut o sjedennom vo vremya obeda, oni vibirayut bolee lyogkij perekus. Vospriyatie. V odnom eksperimenteJ. M. Brunstrom, J. F. Burn, N. R. Sell. Episodic memory and appetite regulation in humans / PLoS One lyudyam podavali 300 ili 500 ml supa, no pri etom odnim govorili pravdu o kolichestve, a drugih obmanivali. Vse uchastniki, poluchivshie informaciyu o 500 ml supa v tarelke, cherez 2–3 chasa chuvstvovali boljshe sitosti, vne zavisimosti ot togo, skoljko sjeli na samom dele. Sposobnostj k kontrolyu. U lyudej s lishnim vesom neredko nablyudayut deficit tormozyaschego kontrolya, chto snizhaet ih sposobnostj podavitj misli o ede i svyazannih s nej stimulah. Uchyonie predpolozhiliT. L. Davidson, S. Jones, M. Roy, R. J. Stevenson.The Cognitive Control of Eating and Body Weight: It’s More Than What You “Think” / Frontiers in Psychology, chto lyudi nabirayut ves iz‑za narushenij v rabote sistemi, opredelyayuschej, naskoljko priyatnim mozhet bitj odno i to zhe sobitie — kogda ono obespechit voznagrazhdenie, a kogda net. I uzhe znakomij nam gippokamp igraet zdesj ne poslednyuyu rolj.Ispoljzuya kontekst, eta struktura mozga reshaet, stoit li zhdatj chego‑to horoshego ili vsyo priyatnoe uzhe zakonchilosj. Esli spravedlivo poslednee, vklyuchaetsya tormoznaya associaciya, i pamyatj o nagrade priglushaetsya.Eta shema raboti vpolne primenima k ede. Pischa mozhet bitj voznagrazhdeniem, kogda chelovek goloden, i ne obespechivatj udovoljstviya, kogda on sit. Signali o nasischenii i yavlyayutsya tem kontekstom, s oporoj na kotorij gippokamp podavlyaet priyatnuyu pamyatj o ede.Chelovek goloden — «estj priyatno, pojdu poem». Chelovek sit — «estj boljshe ne priyatno, pojdu zajmusj chem‑to eschyo». Chelovek el nedavno — «ya eschyo ne progolodalsya, estj budet nepriyatno, ne budu estj».Esli zhe rabota gippokampa narushena, tormoznoj mehanizm ne vklyuchaetsya, i pamyatj o voznagrazhdenii ot edi sohranyaetsya vsegda, dazhe kogda chelovek sit.V rezuljtate on ne mozhet vovremya ostanovitjsya i potreblyaet boljshe, chem nuzhno dlya sitosti, a takzhe beskonechno perekusivaet vne zavisimosti ot togo, kak davno obedal.Mozhno li razorvatj porochnij krugLogichnim sposobom razorvatj porochnij krug pereedaniya i povrezhdeniya gippokampa budet perehod na zdorovoe pitanie. V pervuyu ocheredj stoit sokratitj kolichestvo sladostej i sahara, otkazatjsya ot fastfuda, zhirnogo i obrabotannogo myasa, dobavitj v dietu boljshe ovoschej i fruktov, ribi, orehov i celjnozernovih produktov.Izmeneniya stoit vvoditj postepenno, ne ustanavlivaya zhyostkih zapretov i serjyoznih ogranichenij. Uchitivajte, chto nedostatok tormozyaschego kontrolya mozhetT. L. Davidson, S. Jones, M. Roy, R. J. Stevenson.The Cognitive Control of Eating and Body Weight: It’s More Than What You “Think” / Frontiers in Psychology uslozhnitj zadachu po otkazu ot privichnoj vkusnoj edi i sokrascheniyu eyo kolichestva, a potomu zhyostkie dieti mogut sprovocirovatj sriv.Chtobi pobistree vosstanovitj rabotu gippokampa, takzhe stoit uvelichitj kolichestvo fizicheskoj aktivnosti. Uprazhneniya sposobstvuyutS. Chieffi, G. Messina, I. Villano. Exercise Influence on Hippocampal Function: Possible Involvement of Orexin‑A / Frontiers in Phusiology formirovaniyu novih nejronov v etoj strukture mozga, podderzhivayut eyo zdorovje, uluchshayut poznavateljnie funkcii i nastroenie.Plavnie izmeneniya, poleznoe pitanie i sport pomogut vosstanovitj estestvennie mehanizmi, upravlyayuschie chuvstvom nasischeniya i zhelaniem estj, tak chto podderzhivatj zdorovij obraz zhizni budet gorazdo prosche.

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