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Sueños intensos o noches vacías, la diferencia podría estar en la genética

Dormir, una actividad cotidiana y aparentemente simple, desempeña un papel crucial en el mantenimiento de los niveles de energía y en el correcto funcionamiento tanto del cerebro como del organismo en su totalidad.
Este proceso se convierte en un agente vital para preservar la salud física y mental. El descanso es esencial para recargar energías, y despertarse renovado no solo resulta placentero, sino que constituye una necesidad fisiológica fundamental. Durante el sueño, el cuerpo lleva a cabo tareas de mantenimiento indispensables para su correcto funcionamiento.
Estas van desde la reparación de tejidos y músculos hasta la consolidación de recuerdos. Sin embargo, no es solo el cuerpo el que se beneficia de estas reparaciones: el cerebro también optimiza sus capacidades cognitivas y emocionales.
Un sueño puede generar alegría al despertar, como una historia inconclusa que se intenta continuar al cerrar los ojos nuevamente, según señala Women’s Health. Sin embargo, también existen aquellos episodios desagradables o incluso aterradores que interrumpen el descanso en plena noche. Estas dualidades no solo evidencian la complejidad de la mente humana, sino también su constante dinamismo.

El acto de soñar ha fascinado a la humanidad desde tiempos inmemoriales. A lo largo de la historia, los sueños han sido considerados como ventanas al subconsciente, fuentes de inspiración e incluso augurios del futuro, recuerda Women´s Health.
Sin embargo, más allá de estas interpretaciones, el onirismo sigue siendo un campo cuyo entendimiento se encuentra en desarrollo constante, impulsado por avances en la investigación científica.
El acto de dormir y soñar va mucho más allá de cerrar los ojos y pasar algunas horas en la inconsciencia. Mientras se duerme, el cuerpo recupera fuerzas, el cerebro procesa información y la mente se sumerge en un mundo de sueños que puede ser tanto un calmante refugio como un enigma.
En el ámbito de la investigación científica, el fenómeno de los sueños ha dado un fascinante salto con los descubrimientos realizados por un prestigioso equipo de científicos en el Centro Riken de Biosistemas Dinámicos en Japón.
Hasta ahora, el soñar era un misterio indescifrable de la mente humana; no obstante, estos hallazgos lo han vinculado con la genética, sugiriendo que la predisposición a soñar está influenciada por un gen que se podría tener o no.

Los científicos han descubierto que los sueños están intrínsecamente conectados a un componente genético. Los sueños se producen principalmente durante la fase conocida como REM (movimientos oculares rápidos), un estado en el cual la actividad cerebral es curiosamente similar a la que ocurre cuando se está despierto.
Este estado no solo se asocia con los sueños más vívidos, sino que también es clave en la consolidación de la memoria, un proceso aún parcialmente comprendido por la ciencia moderna.
Para entender mejor los engranajes biológicos que rigen los sueños, los investigadores emplearon tecnología avanzada para modificar la genética de ratones. Este enfoque permitió aislar e identificar dos genes, Chrm1 y Chrm3, que resultan cruciales en la regulación del sueño.
Al inhibir estos genes, los científicos notaron una impactante reducción en el tiempo que los ratones experimentaban el estado REM, afectando directamente su habilidad para soñar.
Los receptores Chrm1 y Chrm3 están distribuidos por todo el cerebro, desempeñando roles fundamentales. Cuando estos receptores no funcionan adecuadamente, los individuos –en este caso, los ratones– muestran una incapacidad para soñar. Este experimento concluyó que los mencionados receptores son esenciales para regular no solo el sueño sino los procesos de ensueño.

Este progreso permite vislumbrar nuevas líneas de investigación capaces de revelar más secretos sobre el sueño y, eventualmente, aportar respuestas a trastornos de ese tipo que padecen millones de personas en todo el planeta.
El descubrimiento representa un paso crucial en el camino hacia la comprensión del rol que desempeña la genética en cómo se sueña, ofreciendo una perspetiva renovadora para el conjunto de estudios del sueño.
INTERNACIONAL
El golpe fulminante de EE.UU. e Israel para matar al líder supremo de Irán, Ali Khamenei
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Jeb Bush commends former rival Trump’s Iran operation: ‘This is their time to take their country back’

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FIRST ON FOX: A major public policy nonprofit co-led by former Florida Gov. Jeb Bush praised President Donald Trump for ordering Saturday’s military strikes against Iran.
United Against a Nuclear Iran (UANI) — was formed in 2008 by Ambassador Mark Wallace, who held a United Nations-centered post in Bush’s brother’s administration, and former George H.W. Bush diplomat Dennis Ross — to combat threats posed by the Islamic Republic.
The group has been on the front lines of highlighting Iran’s human rights abuses and attacks on Americans and advising policymakers and the business community about dangers posed by Tehran.
The organization counsels existing and would-be commercial partners of Iran regarding the legal, financial and reputational risks of that kind of commerce.
«UANI salutes the courage and professionalism of American and Israeli service members carrying out this historic mission against the Iranian regime,» Bush and Wallace told Fox News Digital Saturday.
Republican presidential candidates Donald Trump, left, and Jeb Bush take part in a presidential debate at the Reagan Library Sept. 16, 2015, in Simi Valley, Calif. (Justin Sullivan/Getty Images)
«We applaud President Trump for his courageous decision to launch this military operation. For 47 years, the Iranian regime has unleashed terror, violence and misery — against its own people and across the region — while threatening the United States, Israel and our allies.»
Bush, who ran against Trump in a bruising 2016 primary, and Wallace noted that many presidents tried to bring Iran into the «peaceful community of nations» but were not able to finish the job.
«This president engaged extensively and in good faith to achieve a diplomatic solution,» they said after Trump indicated as recently as last week he wanted to negotiate terms.
«The regime chose escalation and continued its pursuit of nuclear weapons. The responsibility for this moment rests squarely with Ayatollah Khamenei.»
Khamenei, 86, was declared dead by Israeli sources by late afternoon.
Bush and Wallace added it was clear the joint American-Israeli operation was directed not at Iran, the country and citizenry, but at Khamenei’s «lethal capabilities.»
The Iranian people, they said, have long suffered under repression and that Trump’s message since the strikes began is one that should be embraced by all Americans: «We aim to see Iran free, prosperous, and at peace. This is their time to take their great country back.»
«The Butcher of Tehran is dead,» Bush and Wallace added in a separate public statement.
ICE NABS IRANIAN NATIONAL WITH RAPE, SODOMY CONVICTIONS AFTER VIRGINIA DEMOCRATS MOVE TO CURB COOPERATION
Bush added in a statement on X that «Operation Epic Fury marks a historic mission against the Iranian regime.»
«We salute the courage and professionalism of American and Israeli service members and commend for his courageous decision,» he added.
Bush’s relationship with Trump has appeared to warm since their bitter feuds of a decade ago.
During the 2016 sweeps, Trump nicknamed the Republican Party scion «Low Energy Jeb,» while Bush quipped that the mogul would not be able to «insult your way to the presidency» after the eventual victor mocked an ad that former first lady Barbara Bush filmed for her son.
While governor, Bush made improving public education a hallmark of his administration in Tallahassee. Bush implemented stricter proficiency standards in elementary education and signed what was dubbed the «A+ plan,» making Florida the first state to require clear letter grades on student performance.
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He recently praised the Trump administration’s overtures toward universal school choice and federal block grants as a «transformational opportunity.»
«The Trump administration has a chance to shift the power dynamic back to the states, where policymakers are uniquely equipped to understand and address the diverse needs of their students, schools, and communities,» he added in a column in Education Week.
war with iran,iran,george w bush,donald trump,elections,terrorism
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Khamenei’s death opens uncertain chapter for Iran’s entrenched theocracy

US base in Saudi Arabia under attack
Fox News chief national security correspondent Jennifer Griffin joins ‘America Reports’ to give the latest on the aftermath of the U.S.-Israel strikes on Iran.
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Iran entered a new chapter Saturday after Supreme Leader Ayatollah Ali Khamenei was killed, abruptly ending more than three decades of authoritarian rule and setting in motion a leadership transition the regime has long prepared.
A senior Arab diplomat told The Times of Israel that while Khamenei’s demise is a «massive blow» to the Islamic Republic, Tehran anticipated the possibility and took steps to withstand such a scenario.
«Mere survival, at this point, would be considered a victory,» the diplomat said of the regime, according to the outlet, following U.S. and Israeli strikes across the country.
A recent report from the Council on Foreign Relations (CFR) outlined three broad trajectories for a post-Khamenei Iran: managed regime continuity, an overt or creeping military takeover, or systemic collapse.
Iranian Supreme Leader Ali Khamenei was killed in an Israeli strike on Saturday. (Office of the Supreme Leader of Iran via Getty Images)
CFR cautioned that even a leadership change at the top would not necessarily translate into meaningful political reform in the near term, given the regime’s deeply institutionalized power structure and its record of using force to maintain control.
The report notes that the real balance of power rests within a tight circle of clerical elites and the Islamic Revolutionary Guard Corps (IRGC).
It describes a likely «continuity» scenario as producing «Khamenei-ism without Khamenei,» in which a successor from within the regime preserves the ideological framework of the Islamic Republic while relying on established security institutions to preserve stability.
LEAKED DOCUMENTS EXPOSE KHAMENEI’S SECRET DEADLY BLUEPRINT FOR CRUSHING IRAN PROTESTS
«The Islamic Republic’s constitution includes a succession process. The Assembly of Experts, a clerical body, is constitutionally charged with selecting the next supreme leader,» Jason Brodsky, policy director of United Against Nuclear Iran (UANI), told Fox News Digital.
«In the interim, should there be a leadership vacancy, an interim leadership council is formed comprised of the president, chief justice, and a member of the Guardian Council selected by the Expediency Council,» he added. «The IRGC is a key stakeholder in this process, and will heavily influence its outcome.»
Over the past three decades, the Bayt-e Rahbari, or the Office of the Supreme Leader, expanded into what a February report by UANI described as a «sprawling parallel state» operating alongside Iran’s formal institutions.

Large crowds gather at Enghelab Square in Tehran, Sunday, after Iranian state TV announced that Supreme Leader Ayatollah Ali Khamenei was killed in an Israeli strike. (Fatemeh Bahrami/Anadolu via Getty Images)
The analysis characterizes the Office as the regime’s «hidden nerve center,» extending control across the military, security establishment and major economic foundations in ways that make the system’s authority institutional rather than dependent on Khamenei’s physical presence.
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«The supreme leader today is no longer just one man; he is represented through an all-encompassing institution that consolidates power, manages succession, and guarantees continuity,» the non-partisan policy organization said. «The Islamic Republic’s most enduring strength lies in this hidden architecture of control, which will continue to shape the country’s future long after Khamenei himself departs from the scene.»
war with iran,iran,middle east,world,geopolitics
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