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Double mastectomies don't increase cancer survival, study suggestsOther types of surgery besides double mastectomies are equally good at lowering death rates in women with cancer in one breast.
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Some people recover from ALS — now, we might know whyA rare gene variant may explain why a subset of patients with ALS recover from the deadly disease.
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Injectable goo could fix joints without surgery, early study suggestsNew research shows that an injectable goo can repair cartilage damage in animals' joints within six months. Scientists are now developing the tech for use in humans.
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What is doping? And which performance-enhancing drugs are banned?Many drugs are forbidden for use by athletes in major international competitions, such as the Olympics. Here's why.
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USA Basketball doctor shares what it's like to treat athletes at the OlympicsAn orthopedic surgeon explains what it's like to support USA Basketball at the Olympics.
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Eating too much sugar may accelerate cellular agingIn a new study, women who followed diets low in added sugar and high in nutrients had "younger-looking" cells.
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Short-term vegan diet may slow aging, but questions remainA small trial in identical twins has shown that going vegan for two months may slow aging, but the findings should be interpreted cautiously, experts say.
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Can you get a brain-eating amoeba from tap water?In the U.S., tap water is generally safe and not a likely source of brain-eating-amoeba infections, experts told Live Science.
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This is what it's like to treat a 'brain-eating' amoeba infectionA now-retired doctor in Texas describes his experience treating a child with a brain-eating amoeba infection.
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What causes blushing? Science finally reveals the answer.A new study harnessed Mariah Carey karaoke and brain scans to reveal the neuroscience behind blushing.
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New, faster sepsis test could save lives, scientists sayPreliminary experiments suggest that a new test could diagnose bacterial infections that cause sepsis days faster than conventional approaches, with potentially lifesaving consequences.
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Why are scars permanent?Scar tissue differs from normal skin in a few important ways.
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'We can't answer these questions': Neuroscientist Kenneth Kosik on whether lab-grown brains will achieve consciousnessSo much is still unknown about consciousness, nevermind whether brain organoids will achieve it, explains a leading neuroscientist.
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Could blocking this one protein extend human life span?Blocking a pro-inflammatory protein extended the life span of mice by around 25%. Could it do the same in humans?
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New fungal infection discovered in ChinaScientists uncovered a species of fungi that had never before been seen in humans. They say warmer temperatures could drive its evolution, for the worse.
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Scientists breed most human-like mice yetScientists have bred mice that are just like us — at least in terms of their immune systems.
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Astronauts could ditch diapers on spacewalks thanks to new device that let's them drink their peeA new device may someday soon allow astronauts to drink purified water made from their filtered pee during spacewalks.
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Bubonic plague strikes person in ColoradoColorado health officials have confirmed a human case of bubonic plague in the state.
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Benzos like Xanax may shrink the brain in the long term, study hintsA new study involving almost 5,500 people suggests that long-term benzodiazepine use may shrink parts of the brain involved in memory and mood regulation.
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Scientists just grew the 1st-ever 'minibrains' from multiple people's cellsHybrid brain organoids could be used to test how people respond differently to drugs before clinical trials begin, researchers say.
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The gut microbiome has a circadian rhythm. Here's how it might affect your health.Daily fluctuations in gut microbes may have a plethora of effects on the body, but many questions remain.
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Bionic legs plugged directly into nervous system enable unprecedented 'level of brain control'A first-of-its-kind study demonstrated that a new nervous system-controlled bionic leg helps leg amputees walk more naturally than traditional prosthesis.
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Secret to lifelong memories sticking is molecular 'glue'A new study has uncovered the role that a specific molecule in the brain plays in maintaining long-term memory.
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Americans face a higher risk of dengue this year, CDC warnsThe CDC has issued a new health alert as global cases of dengue fever soar.
