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Lyme disease: Symptoms, diagnosis and treatmentLyme disease is an infection that is spread to humans through the bites of ticks carrying specific bacteria.
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Animal sex: How birds do itAnimals have sex in all sorts of weird and wonderful ways. Birds have sex via an internal chamber called a cloaca that is present on both male and female animals.
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Stroke: Symptoms, tests and treatmentStroke is the second leading cause of disability and death worldwide, and occurs when the flow of blood to the brain is disrupted.
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Chronic fatigue syndrome: Causes, symptoms and treatmentChronic fatigue syndrome is a complex, multisystem disease that can often go undiagnosed.
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Flying saucers to mind control: 24 declassified military & CIA secretsFrom programs to build supersonic flying saucers to atomic bombs, here are the most fascinating declassified military and CIA secrets.
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What is normal blood sugar?Blood sugar, or glucose, is the main source of fuel for our body - keeping it in check is essential to our health.
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Who invented the lightbulb?Reference Though Thomas Edison is credited as the man who invented the lightbulb, several inventors paved the way for him.
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Photos: Math Meets Art in NYC ExhibitionA former hedge-fund manager in New York City is making art that any math or science geek can appreciate.
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Why Does Rain Smell Good?There's a reason we love the scent after a good rain.
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What is reiki and does it work?Reiki is a therapy often described as palm healing or hands-on-body healing in which a practitioner places hands lightly on or over a patient's body to treat or cure various ailments.
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Who invented the bicycle?Reference The bicycle has a complicated past fraught with controversy and misinformation.
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Crystal healing: Stone-cold facts about gemstone treatmentsReference Crystal healing is an alternative medicine technique that employs crystals and other stones as conduits for natural healing energy.
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28 Devastating Infectious DiseasesCountdown Contagious diseases have shaped human history and they remain with us. Here's a look at some of the worst, from ebola and dengue to the more recent coronavirus and Zika virus.
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Mosquitoes: Biology, Repellents & Bite ReliefHere's how to engineer a mosquito-free environment, and what to do if these annoying insects do bite.
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Eiffel Tower: Information & FactsThe iconic Parisian landmark has loomed over the city since 1889.
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Niels Bohr: Biography & Atomic TheoryNiels Bohr won a Nobel Prize for the idea that an atom is a small, positively charged nucleus surrounded by orbiting electrons. He also contributed to quantum theory.
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What is Acupuncture?Treatment with acupuncture needles does work to alleviate pain and nausea, studies show.
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Head Lice: Symptoms, Treatment and PreventionIt may take more than a month for symptoms of head lice to show.
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Spider bites and bee stings: Symptoms and treatmentsMost bug bites and stings are usually just uncomfortable. However, some people are allergic to the venom of certain insects or spiders and can have severe, even life-threatening reactions.
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Diarrhea: Causes, Symptoms & TreatmentsDiarrhea is one of the most commonly reported ailments in the United States. It can be caused by parasites, viruses or bacteria.
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24 Amazing Archaeological DiscoveriesFrom the great, lost library of King Ashurbanipal to the toxic tomb guarded by the terracotta warriors of Shaanxi, here are the 24 most incredible archaeological findings of all time.
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The Scariest Places on EarthHere are some of the creepiest, crawliest, most terrifying places on the planet.
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The 25 most mysterious archaeological finds on EarthThese finds have stumped scientists and captured imaginations.
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25 Weird Things Humans Do Every Day, and WhyWith a little contemplation, many everyday human behaviors seem truly bizarre.
