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Memory consolidation requires reactivation of only three neurons during sleep, research reveals

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  • 2025-09-02 23:34 event
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Memory consolidation requires reactivation of only three neurons during sleep, research reveals
Researchers at Tsukuba University in Japan report that memories acquired while awake are stored in a more permanent form (called memory consolidation) during the REM stage of sleep, and that this process requires the reactivation of only a few specialized neurons involved in memory formation. They found that three of these neurons are crucial for memory consolidation during REM sleep.

1.162. Peripheral Artery Disease Awareness Month urges screening and advocacy in national effort to prevent amputations

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September is Peripheral Artery Disease (PAD) Awareness Month, a time to take action against a disease that affects more than 10 million Americans and is the largest cause of nontraumatic amputations in the United States. That's why the PAD Pulse Alliance, a coalition of leading medical societies dedicated to improving vascular health, is urging patients, providers, and policymakers to act through its Get a Pulse on PAD Campaign.

1.163. Amid cuts, SNAP-Ed study reveals partnerships support healthy communities

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A critical program supporting healthy communities in Illinois and across the country took a devastating hit on July 4 when HR1, the federal budget reconciliation bill, was passed and signed into law. In addition to slashing funding for the Supplemental Nutrition Assistance Program (formerly known as food stamps), the bill eliminated funding altogether for SNAP's companion program, SNAP-Education, which works with community partners to educate SNAP-eligible families and individuals on obesity prevention, healthy foods, active lifestyles, and stretching food dollars.

1.164. Brain cancer cells can be 'reprogrammed' to stop them from spreading

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Scientists have found a way to stop brain cancer cells spreading by essentially 'freezing' a key molecule in the brain.

1.165. Birth control in Africa: Study tracks the use of long-acting contraception in 26 countries

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Contraception, or birth control, can take a number of forms including drugs, devices, or surgery to prevent pregnancy. Methods can be long-acting or short-acting. Obasanjo Bolarinwa, who teaches public health and global health care management, unpacks his research into the use of long-acting contraceptives among sexually active women in 26 sub-Saharan African countries.

1.166. WiFi signals can measure heart rate—no wearables needed

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Heart rate is one of the most basic and important indicators of health, providing a snapshot into a person's physical activity, stress and anxiety, hydration level, and more.

1.167. New drug targets cancer cell mitochondria to halt head and neck tumors

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Researchers at MUSC Hollings Cancer Center have discovered a potentially powerful weapon in the fight against head and neck cancers. The new drug, still in preclinical studies, attacks cancer cells from within by damaging their mitochondria, the cells' energy factories.

1.168. Breast cancer: New study finds genetic risk in African women

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Breast cancer is the most common cancer in women worldwide. In sub-Saharan Africa, it is a leading cause of cancer-related deaths among women.

1.169. AI effective at detecting advanced breast cancer, but misses some cases

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A Korean research team has reported that artificial intelligence (AI) used in mammography missed 14% of invasive breast cancers, the type where delayed diagnosis can directly impact patient survival.

1.170. Gordon Ramsay reveals skin cancer diagnosis, urges folks to use sunscreen

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Celebrity chef and restaurateur Gordon Ramsay revealed he had surgery to remove basal cell carcinoma, a common form of skin cancer, from his jawline.

1.171. Memory consolidation requires reactivation of only three neurons during sleep, research reveals

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Researchers at Tsukuba University in Japan report that memories acquired while awake are stored in a more permanent form (called memory consolidation) during the REM stage of sleep, and that this process requires the reactivation of only a few specialized neurons involved in memory formation. They found that three of these neurons are crucial for memory consolidation during REM sleep.

1.172. Spouses show consistent similarities across nine psychiatric disorders over generations

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A multinational collaboration of researchers report that psychiatric spousal resemblance across nine psychiatric disorders appears consistent and persists across birth cohorts for roughly 90 years in a sample of over 14 million.

1.173. Could octopuses hold the key to curing cancer?

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Scientific breakthroughs often emerge from unexpected and unlikely places. The development of penicillin was an accident, Velcro was inspired by plant burrs and multiple cancer treatments have been developed from sea sponges.

1.174. Cells use a synchronized 'traffic control system' to determine nutrient availability and energy balance

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Scientists at Ben-Gurion University of the Negev have discovered that human cells operate a sophisticated, synchronized traffic control system that actively monitors nutrient availability and precisely controls cellular energy balance and blood sugar levels. This finding challenges long-held assumptions about how cells sense and respond to changing nutrient levels—and offers a promising new target for treating diabetes and cancer.

1.175. New method to study embryonic implantation offers hope for assisted reproduction

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The use of assisted reproductive technologies like in vitro fertilization is becoming more common worldwide. However, while these technologies successfully create viable embryos, a little over half of all embryos are lost because they fail to implant into the uterus.

1.176. Immune molecule long tied to inflammation may benefit the aging brain

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Inflammation in the brain is usually seen as harmful in the aging process—it's thought to contribute to Alzheimer's and dementia. But a new study in mice suggests that inflammation, led by an immune molecule called STING (stimulator of interferon genes), might have a role in protecting the aging brain. The findings also have implications for new experimental Alzheimer's drugs that are designed to block STING.

1.177. CVS and Walgreens limit COVID vaccines in some states as rules shift

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CVS and Walgreens are changing where and how they offer COVID-19 vaccines this season as they work to comply with state laws and current U.S. Centers for Disease Control and Prevention (CDC) guidelines.

1.178. Molecular map reveals previously hidden connections between diseases

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The human body is a complex and interconnected system, where alterations caused by one disease can promote the onset of others. This tendency for certain diseases to occur together, beyond what would be expected by chance, is called co-occurrence. Thus, although there are diseases with widely known co-occurrence in certain groups of patients, such as Crohn's disease and the development of ulcers, many of the molecular mechanisms that would explain them were, until now, unknown.

1.179. Weakness discovered in blood cancer cells could pave way for targeted treatment

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Researchers at Karolinska Institutet have identified a vulnerability in certain blood cancer cells that makes it possible to eliminate the cancer cells with a drug, without harming healthy cells. The study is published in Leukemia.

1.180. Zoo poo might hold the secrets to new medical treatments

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Scientists at the University of Leicester are hoping the collection of poo from tigers, elephants, giraffes and other exotic animals could contain the secret to finding new medical treatments.

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