{"id":24968,"date":"2025-02-17T21:15:56","date_gmt":"2025-02-18T02:15:56","guid":{"rendered":"https:\/\/www.americanonewspaper.com\/es\/?p=24968"},"modified":"2025-02-17T21:16:49","modified_gmt":"2025-02-18T02:16:49","slug":"adolescentes-comen-mas-por-ritmos-circadianos","status":"publish","type":"post","link":"https:\/\/www.americanonewspaper.com\/es\/ciencia\/adolescentes-comen-mas-por-ritmos-circadianos\/","title":{"rendered":"Adolescentes comen m\u00e1s por ritmos circadianos"},"content":{"rendered":"\n

Redacci\u00f3n Ciencia, 17 feb (EFE).- <\/p>\n\n\n\n

Los adolescentes comen m\u00e1s al final del d\u00eda y aquellos con obesidad ingieren m\u00e1s calor\u00edas en ese periodo que los que tienen un peso saludable, un comportamiento que, seg\u00fan un nuevo estudio, se ve influido por los ritmos circadianos, el reloj interno del organismo.<\/p>\n\n\n\n

Este descubrimiento abre una puerta a posibles intervenciones que puedan mejorar la salud de los adolescentes en el futuro, seg\u00fan un estudio de cient\u00edficos estadounidenses que publica PNAS.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Las causas de la obesidad son complejas y en ellas influyen muchos factores, los cient\u00edficos siguen sin estar seguros del papel del sistema circadiano (el reloj biol\u00f3gico) en la configuraci\u00f3n de los patrones alimentarios.<\/p>\n\n\n\n

El estudio revela una relaci\u00f3n distinta entre los ritmos circadianos, el peso y los h\u00e1bitos alimentarios de los adolescentes, un grupo de edad vulnerable cuyos patrones alimentarios influyen en su salud a lo largo de toda la vida.<\/p>\n\n\n\n

Los resultados mostraron que los cambios en el sistema circadiano a lo largo del d\u00eda y la noche influ\u00edan significativamente en el consumo de alimentos, seg\u00fan los investigadores de la Universidad Brown y del Hospital Mass General Brigham.<\/p>\n\n\n\n

\"Descuento\"<\/a>
Descuento<\/figcaption><\/figure>\n\n\n\n

Durante la investigaci\u00f3n, en los tres grupos analizados -divididos en funci\u00f3n del \u00edndice de masa corporal- la ingesta de alimentos alcanz\u00f3 su punto m\u00e1ximo al final del d\u00eda y el m\u00ednimo por la ma\u00f1ana.<\/p>\n\n\n\n

Los adolescentes de los grupos de obesidad y sobrepeso consumieron muchas m\u00e1s calor\u00edas en la noche circadiana que los del grupo de peso saludable, si bien no hubo diferencias significativas en el tiempo total de sue\u00f1o entre los grupos o dentro de ellos a lo largo de los ciclos de sue\u00f1o.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

El sistema circadiano est\u00e1 compuesto por \u2018relojes\u2019 en pr\u00e1cticamente todos los \u00f3rganos, tejidos y c\u00e9lulas, que preparan la biolog\u00eda y el comportamiento para adaptarse a las exigencias cambiantes a lo largo del ciclo d\u00eda\/noche. Su influencia difiere entre las personas debido a una combinaci\u00f3n de factores gen\u00e9ticos, conductuales y ambientales.<\/p>\n\n\n\n

El estudio se realiz\u00f3 con 51 voluntarios de entre 12 y 18 a\u00f1os a los que se someti\u00f3 a ciclos de sue\u00f1o y vigilia de 28 horas -un poco m\u00e1s largos que un d\u00eda t\u00edpico de 24 horas- y permanecieron en un entorno controlado de luz tenue mientras estaban despiertos y en completa oscuridad durante el sue\u00f1o.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Los participantes permanecieron en el mismo espacio durante todo el estudio, que dur\u00f3 11 d\u00edas y 10 noches. Para controlar las influencias externas sobre el ritmo circadiano, los investigadores eliminaron todas las se\u00f1ales horarias externas del entorno del laboratorio, incluidos los relojes y el acceso a la luz natural.<\/p>\n\n\n\n

Los adolescentes tuvieron seis oportunidades para comer a horas fijas durante el episodio de vigilia, con un men\u00fa estandarizado y pod\u00edan consumir en esos momentos tantos alimentos como quisieran.<\/p>\n\n\n\n

Los resultados mostraron que los cambios en el sistema circadiano a lo largo del d\u00eda y la noche \u201cinflu\u00edan significativamente en el consumo de alimentos\u201d, seg\u00fan la Universidad de Brown.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Adem\u00e1s se trata de la primera investigaci\u00f3n que \u201cdemuestra que la propia ingesta de alimentos est\u00e1 regulada por nuestro reloj corporal interno\u201d, en palabras de Frank Scheer, uno de los firmantes.<\/p>\n\n\n\n

Los investigadores indicaron que se necesitan estudios futuros para determinar si la afectaci\u00f3n del control circadiano de la ingesta de alimentos contribuye a los cambios de peso, si los cambios de peso repercuten en el control circadiano de la ingesta de alimentos, o una combinaci\u00f3n de ambos.<\/p>\n","protected":false},"excerpt":{"rendered":"

Redacci\u00f3n Ciencia, 17 feb (EFE).- Los adolescentes comen m\u00e1s al final del d\u00eda y aquellos con obesidad ingieren m\u00e1s calor\u00edas en ese periodo que los que tienen un peso saludable, un comportamiento que, seg\u00fan un nuevo estudio, se ve influido por los ritmos circadianos, el reloj interno del organismo. Este descubrimiento abre una puerta a […]<\/p>\n","protected":false},"author":7,"featured_media":24969,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"tdm_status":"","tdm_grid_status":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"categories":[909,593,596],"tags":[],"class_list":{"0":"post-24968","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ciencia","8":"category-ciencia-y-tecnologia","9":"category-comunidad"},"acf":[],"yoast_head":"\nAdolescentes comen m\u00e1s por ritmos circadianos - Americano Newspaper<\/title>\n<meta name=\"description\" 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