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Can stress turn hair gray?Science suggests the answer is "yes".
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Does the moon affect menstrual cycles?Studies suggest synchronizations in the lunar and menstrual cycles are down to random chance.
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What is a squall?There are different types of squalls, including a sudden windy cold front and a short-term burst of heavy snow and wind.
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Why do horses wear shoes?What happens to wild horses that don't have shoes?
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How do smelling salts work?Smelling salts are found in Victorian novels to rouse fainting women and on the sports field to possibly help athletes. But how do they work?
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Where on Earth does the sun rise first?Where does the first sunrise happen every day and which place sees the first sunrise of the New Year?
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How do you break a habit?Habits can be hard to break, but here are a few ways you can do it.
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Octopuses may be so terrifyingly smart because they share humans' genes for intelligenceGenetic analysis of octopuses identified DNA sequences in their brains called transposons, which may help regulate learning.
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If blood is red, why do veins look bluish?Blood is always red, and veins look blue or green because the skin filters light wavelengths differently.
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Massive Martian meteor impact was largest ever recorded in solar systemA magnitude 4 marsquake that rocked the Red Planet in 2021 is the result of a massive meteor impact, two new studies revealed.
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What Is Coral Bleaching?Nature's red flag is the eerie white glow of one of the ocean's most biologically rich ecosystems.
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Why is alcohol used to preserve things?Here's how alcohol can help preserve DNA, tissue samples and even entire organisms.
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What is gluten?Reference Gluten refers to the proteins found in wheat endosperm. Some people are gluten-intolerant, but a gluten-free diet is not for everyone.
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Does walking bring on labor?It's commonly said that walking will help to bring on labor. While it's no guarantee as it doesn't induce labor contractions, walking helps the cervix prepare for the birth.
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Broken fortress discovered under 'mega-monument' burial mound in CyprusArchaeologists in Cyprus have unearthed a broken rampart, or a part of a defensive wall, under a massive burial mound.
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Why does Christianity have so many denominations?Schisms within the church have led to more and more denominations over the millennia.
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Will eating pet food kill you?Chowing down pet food may not be as safe as it used to be.
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Does the human body replace itself every 7 years?Your body's cells are constantly replicating themselves, but the rate of renewal depends on where those cells are located and what they do.
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Man’s 'overzealous' vitamin D use led to overdose, hospitalizationA man's overzealous intake of vitamin D supplements ended poorly, requiring a hospital stay for over a week.
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How does soap kill germs?Soap is great at getting rid of pathogenic bacteria and viruses because of its molecular structure.
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Why can't babies drink cow's milk?Milk isn't the same across species. Here's the science of why babies shouldn't drink cow's milk until they're older.
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Why does eating pineapple make your mouth tingle?Is it the combination of the pineapple's acidity and the enzyme complex called bromelain that likely make your mouth sore.
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Why are there so many giants in the deep sea?Here's the science behind why some deep sea creatures — such as squids, sharks, sea spiders and worms — get so giant.
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Why do microwaves cook food so much faster than ovens do?Here's the science behind how ovens and microwaves differ in the food-heating process.
