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National Guard Deployment Battle Intensifies

admin - Latest News - October 9, 2025
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As the Texas National Guard continues to move into the Chicago area, demonstrators are protesting the federal deployment with local officials saying the presence of these forces is only inflaming tensions. President Donald Trump argues National Guard troops in Chicago and Portland are critical to protect federal agents and property. NBC’s Peter Alexander reports for TODAY from the White House.



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November 27, 2025
Nov. 27, 2025, 6:00 AM ESTBy Akshay Syal, M.D.For decades, doctors have been puzzled by why women develop Alzheimer’s disease at nearly twice the rate of men. There are an estimated 7 million people in the U.S. living with Alzheimer’s, with that number expected to reach nearly 13 million by 2050. A majority of cases, or about 2 out of every 3, are in women. An emerging body of research is suggesting that estrogen, the predominant female sex hormone, may play a critical role, specifically in the perimenopausal transition to menopause, when the body’s hormone levels naturally begin to decline. Estrogen is thought to perform a variety of functions in the body, such as improving cardiovascular health and maintaining bone density. Estrogen is very important to the brain and is considered neuroprotective, helping shield brain cells from inflammation, stress and other forms of cellular damage. Alzheimer’s researchers are focused on the early period of perimenopause, which typically occurs in a woman’s early- to mid-40s, as a target for hormone replacement therapy to maintain estrogen levels and possibly protect some women against developing dementia decades later. “This interest comes primarily from decades of pre-clinical research, animal models, and basic science research showing that menopause is a tipping point for Alzheimer’s pathology,” said Lisa Mosconi, director of the Alzheimer’s Prevention Program at Weill Cornell Medicine. Mosconi is leading a new $50 million global women’s health research initiative called CARE, or Cutting women’s Alzheimer’s risk through endocrinology. Looking at biomarkers from nearly 100 million women, it’s expected to be the largest analysis of why women are at greater risk of Alzheimer’s disease. The link between estrogen and dementia has gained renewed focus after the Food and Drug Administration recently lifted the decades-old black-box warning on hormone replacement therapy, a move that may lead to many more women in their 40s and 50s being prescribed treatment. Doctors say loosened restrictions could reduce stigma around hormone therapy. The FDA’s move could also pave the way for broader research into whether hormone replacement therapy might offer additional benefits, including protection against dementia. Declining reproductive hormonesMenopause occurs when the ovaries gradually produce less estrogen and progesterone, hormones that help regulate the menstrual cycle. Estrogen and progesterone are sex hormones that are present in females and to a lesser extent in males that play an important role in sexual and reproductive development. Most women reach menopause between the ages of 45 and 55, said Dr. Monica Christmas, a gynecologist and director of the menopause program at UChicago Medicine. The transition can begin years earlier during perimenopause, which usually starts when women are in their mid-40s. That’s when symptoms such as hot flashes, night sweats, mood changes and sleep disturbances often appear. It’s thought that menopause symptoms are caused by decreased levels of estrogen and progesterone in the body. For example, when estrogen levels drop, the body’s internal thermostat, controlled by the hypothalamus in the brain, begins to not work properly. The brain might interpret the body as too hot and tell it to start sweating to cool off, leading to symptoms of hot flashes. Hormone therapy can replenish those levels and help the body regulate its temperature. What role does estrogen play?Receptors for this sex hormone are found throughout our brains, said Rachel Buckley, an associate professor of neurology at Massachusetts General Hospital whose research focuses on sex differences in Alzheimer’s disease. “Estrogen is actually a really powerful hormone,” she said. “It’s found in the hippocampus which is an area [in the brain] that we know is very closely associated with memory and learning.” Estrogen also helps to build and maintain healthy blood flow in the brain, she added, and can even help the brain use energy more efficiently. During menopause, however, the levels of estrogen begin to decline, potentially leaving the brain more vulnerable to damage. “Once the brain loses the protective effects of estrogen and other sex hormones, it’s a turning point for Alzheimer’s pathology accumulation in the brain,” said Mosconi. Can hormone replacement therapy fight dementia?Hormone replacement therapy is available in many forms, including a wearable patch, cream and pills, and can include either estrogen, progesterone, or both. If estrogen helps protect our brain, it would make sense that replacing levels through hormone therapy might confer some sort of benefit. It turns out, however, the answer is much more complicated than that, experts say, as the research behind hormone replacement therapy is mixed and ongoing.However, data suggests that the perimenopause transition might represent a critical window of opportunity where treatment could help some patients ward off dementia, said Dr. Kellyann Niotis, a preventive neurologist in Florida and faculty member at Weill Cornell Medicine. “One leading belief is that during this perimenopausal window hormones are fluctuating rapidly and you can have steep declines in [estrogen] which can be harmful for the brain,” said Niotis.“The idea is that using hormones at a steady state or consistent level kind of helps even out those fluctuations.” A large analysis from Mosconi and her team in 2023 published in Frontiers in Aging Neuroscience found that there may be a sweet spot for initiation of HRT for helping women fight cognitive decline.Her team analyzed over 50 studies and found that people using estrogen therapy in midlife, or within 10 years of their final menstrual period, had a significantly lower risk of dementia. Conversely, when combination hormone therapy was initiated after 65, there was an increased risk of dementia. Another large-scale analysis of 50 studies presented this fall at the American Neurological Association annual meeting found that the risk of Alzheimer’s was up to 32% lower among women who started HRT within five years of menopause than in those who received a placebo or no treatment. The paper is not yet peer-reviewed or published in a journal. The research, which was done by scientists based in India, also found that among women who waited until they were 65 or older to start therapy, there was a 38% increase in Alzheimer’s risk. However, many of the studies performed to date have been observational, said Christmas, and do not directly prove a cause and effect relationship. More rigorous research including large scale trials are needed, she added. Hormone therapy that is prescribed may also not behave exactly like estrogen that is produced naturally by the body, she added, and also requires further study.Why timing of hormone therapy mattersThe theory of a critical window to initiate hormone replacement therapy may be related to estrogen receptors in the brain, said Mosconi. During the transition to menopause, there becomes a progressively higher density of estrogen receptors on brain cells, her research has found. This is because, as estrogen levels naturally decline, the brain increases the amount of available receptors as a compensatory mechanism to try and grab every little bit of estrogen that’s still available to be used up, she said. But at some point, when estrogen is permanently low, the brain ultimately stops trying and gives up, and the estrogen receptors disappear, she added. “That is the end of the window of opportunity because once the estrogen receptors are gone, there’s no point putting estrogen back in the system because it has nothing to bind to,” said Mosconi.Some outstanding questions remain, including how long women would need to stay on hormone replacement therapy or whether estrogen would be more protective for women with a genetic predisposition to Alzheimer’s. It’s also unclear if the brain responds differently to estrogen the body makes compared to hormone replacement. Men, on the other hand, have biologically different brains than women, said Buckley, as they have significantly less estrogen receptors and thus have a lower requirement of the hormone. It’s also unclear if testosterone replacement therapy for men confer any potential benefit for Alzheimer’s prevention, said Niotis. While some studies have suggested an association between men with lower testosterone and dementia, much more research is needed before any definitive conclusions can be made. Experts say it’s still too early to recommend hormone replacement therapy to prevent Alzheimer’s disease.“We do not use hormone therapy for Alzheimer’s prevention right now,” said Mosconi. “Clinical guidelines currently do not endorse using hormone therapy only for Alzheimer’s prevention.” Instead, HRT should be prescribed primarily to treat moderate to severe menopausal symptoms that can affect quality of life, such as hot flashes, night sweats, sleep disturbances or mood changes. Niotis said relieving these symptoms may help improve cognition, as people who sleep better have improved mood and tend to think more clearly. Still, she is optimistic that future research may bring more definitive answers. “The hope is that with the removal of this black-box warning that we’ll have more women that are starting therapies and are less afraid of using them, and more doctors that are less afraid of prescribing them,” said Niotis. Akshay Syal, M.D.Dr. Akshay Syal is a board-certified internal medicine physician at UCLA Health and instructor of medicine at the David Geffen School of Medicine at UCLA. He also is a member of the NBC News Health Unit, reporting for both NBC News Digital and on air for NBC News NOW and MSNBC.  
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Oct. 18, 2025, 7:00 AM EDTBy Carlo AngererRIGA, Latvia — They’re dotted on dozens of buildings across the Latvian capital: signal green signs with white stick figures of a family and the word “patvertne,” which means shelter.Installed everywhere from art deco buildings to wooden gates, the signs alert people to places to hide in the event of an attack — and have become one of many symbols of war preparedness in this charming city, which is crisscrossed with canals and looks nervously east at its Russian neighbor.After a string of recent aircraft incursions along NATO’s eastern flank and suspicious drones shutting down airports in several European countries including Germany, Denmark and Norway, fears about Russian aggression are growing in Latvia and its fellow Baltic nations, Estonia and Lithuania, already spooked by Moscow’s war in Ukraine.“We are on the front line. We are the eastern flank countries. We are neighboring Russia, an aggressive country,” Andris Sprūds, Latvia’s defense minister, told NBC News earlier this month at the Riga Conference, a meeting of international political and military leaders.A building marked “patvertne,” the Latvian word for “shelter,” in the capital, Riga.Carlo Angerer / NBC NewsHe added that Latvia, which launched a drone initiative earlier this year, had to some extent “already developed some resilience” in the face of any Kremlin aggression.Other attendees openly talked about a direct conflict between NATO and Russia. In an onstage discussion at the conference, Matthew Whitaker, the U.S. ambassador to the organization, publicly theorized with his fellow panelists about weapons systems, including long-range missiles and strategic bombers, that could be used against the Kremlin’s forces.But he also emphasized that modern warfare begins before troops and military hardware are deployed.“The first shot of the next war is not going to be tanks through the Suwalki Gap,” he said in a separate interview with NBC News, referring to the narrow land bridge between Poland and the Baltic states, seen as a potential attack point in a Russian invasion. “It’s going to be a cyberattack. It’s going to be knocking out airports or critical infrastructure.”Latvia and other Baltic countries have been very receptive to recent NATO initiatives and are on track to reach defense spending targets soon, he said, adding that they were “investing in things that are going to field more capabilities for our defense and deterrence.”Emergency services have identified hundreds of existing shelters in Riga and authorities are planning to build new ones.Carlo Angerer / NBC News“The investments that make each individual ally stronger and therefore the collective alliance stronger are the important investments, and a country like Latvia is certainly doing it best in class right now,” he added.Adm. Rob Bauer, who chaired NATO’s military committee from June 2021 until January, also suggested that a new conflict with Russia would be fought “in a different way.”Ukraine, he said, lacked air power and strong naval assets, adding that NATO fighter jets had been carrying out missions over the Baltics from the USS Gerald Ford after it was deployed to the North Sea earlier this year.Others, like Roberta Metsola, the president of the European Parliament, openly acknowledged that it took “way too long” for other nations to listen to Latvia, Estonia and Lithuania, which were occupied by the Soviet Union for decades and more recently have been at the forefront of pushing NATO allies to take the Russian threat seriously.Airis Rikveilis, the national security adviser to Latvia’s Prime Minister Evika Silina, said his country was not only focusing on increasing military capabilities, but also on preparing civil society for conflict.“This is not going to be 1940,” he said, referring to the first Soviet occupation, when the Red Army was able to take over within weeks. “Should that battle start tomorrow, we’ll be ready to fight tomorrow with what we have,” he added.After Russian President Vladimir Putin launched his invasion of Ukraine in February 2022, there have been visible changes across Latvia, which has installed a fence along its 176-mile border with Russia. It has also cut itself off from the shared power grid with Russia and Kremlin ally Belarus, which sits to Latvia’s south, and is now relying on energy from its other neighbors.Ukrainian flags fly outside the Russian Embassy in Riga, Latvia.Carlo Angerer / NBC NewsIn Riga, officials have demolished the 260-foot victory memorial dedicated to the Soviet army and renamed the road where the Russian Embassy is located to Ukrainian Independence Street.The blue street sign sits at the corner building next to the embassy’s CCTV cameras and under its large flag. Dozens of Ukrainian flags fly in the square just across the road.Linda Ozola, who served as Riga’s deputy mayor for five years until this summer, oversaw the rebuilding of the shelter network, among other civil protection measures. She said her staff had to scout museums and archives for old documents, as well as reinspect old shelter spaces, some of which had fallen into disrepair.Emergency services have identified hundreds of existing shelters, and updated legislation has cleared the way to build new ones. Their locations are available on a website and cellphone app.Some of them will likely be funded by an 85 million euro ($99.4 million) deal signed on the sidelines of the Riga Conference by Arvils Ašeradens, Latvia’s finance minister, and European allies. The majority of that funding will be used to enhance the civil protection infrastructure, and some will also be used to install generators at health care facilities.Ozola said the city has also started to build up a stock of emergency supplies including canned food and sleeping cots. Riga has been an example for the other regions of Latvia and could also be one for cities across Europe, she said.“The truth is not good because we have a crazy neighbor who wants to destroy our country. And the neighbor is not hiding that, really,” she said. “They haven’t physically crossed the border, but they have crossed the airspace and they have cut our critical infrastructure in the Baltic Sea.”Carlo AngererCarlo Angerer is a multimedia producer and reporter based in Mainz, Germany. 
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