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Nature
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Biology
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The blue-ringed octopus and tetrodotoxin: the golf ball-sized cephalopod with enough venom for twenty-six humans
A tiny inhabitant of Pacific tides that does not synthesize its own toxin, but instead relies for its lethal defense on symbiotic bacteria in its salivary glands.
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Health and wellness
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Anandamide and the 'runner's high': Why exercise euphoria comes from your own cannabinoids
For decades, endorphins were credited for post-workout bliss, but neuroscience discovered that the brain produces its own cannabinoid to dispel pain and anxiety.
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Nature
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The Gympie-Gympie: The Australian plant with glass needles that injects endless pain
A fleeting touch with its leaves is enough to embed thousands of microscopic silica hairs loaded with a neurotoxin that defies time.
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Health and wellness
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The chemistry of emotional tears: The amazing mechanism by which the body physically excretes stress
Far from being simple salt water, crying triggered by intense feelings contains hormones like ACTH and endorphins to restore nervous balance.
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Health and wellness
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The physiological sigh: the pulmonary reset that saves your alveoli from collapse
Your body performs an automatic double inhalation every five minutes to keep your lungs from deflating and to calibrate your nervous system.
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Engineering
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The MOSE Project: The 78 invisible gates that emerge from the sea to save Venice
The colossal hydraulic work of submerged pneumatic barriers on the seabed that inflate with air to stop high tide.
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Health and wellness
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The heart as an endocrine gland: The secret sensor that regulates your blood pressure
Far from being just a mechanical pump, the heart's atria produce a hormone that orders the kidneys to eliminate salt and relax the arteries.
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Health and wellness
2 min read
Ocular immune privilege: why your eyes hide from your own defenses
If your immune system discovered the internal composition of your eyeballs, it could attack and destroy them as if they were foreign invaders.
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Health and wellness
2 min read
Opiorphin: The powerful painkiller hidden in your saliva that surpasses morphine
Discovered at the Pasteur Institute, this natural molecule blocks pain by protecting the body's own resources without causing addiction.
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Animals
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The architect pufferfish: The underwater creator of perfect geometric circles
At barely twelve centimeters in length, this tiny Japanese fish carves complex two-meter mandalas into the seabed to court and protect its eggs.
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History
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The Great Boston Molasses Flood: The sweet tsunami that devastated a neighborhood at 56 km/h
In 1919, the collapse of an industrial tank unleashed a lethal eight-meter wave of thick syrup onto the streets of Massachusetts.
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