Do I Need to Throw Away My Shoes If I Have Toenail Fungus? A Science Explainer
No, you almost never need to throw away your shoes because of toenail fungus.
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Independent reading across science, from familiar questions to new ideas. Explore the methods, mechanisms, and connections that expand our understanding.
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01 / IDEAS WORTH EXPLORING ↗FIELD NOTES
VIEW ALL ENTRIES ↗Do Angus Cattle Have Horns? The Genetics, Polled Trait, and Breed Reality
No, purebred Angus cattle do not have horns. Both the American Angus Association and the breed's founding herd book define Angus as a polled breed, meaning animals are born without horns and carry the genetic profile that suppresses horn…
Do Carbon Fiber Insoles Make You Jump Higher? The Biomechanics, the Evidence, and the Limits
Carbon fiber insoles do not make you jump higher on their own.
Do Insects Sleep at Night? The Science of Rest, Rhythms, and Shutdown in Six-Legged Brains
Yes, many insects rest at night, but calling it "sleep" requires caveats.
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MECHANISMS / QUESTIONS / PERSPECTIVECanada’s ‘Free’ Healthcare: What It Actually Covers and Who Still Pays
Canada’s ‘Free’ Healthcare is not free. It is publicly funded through taxes and covers hospital and physician care for residents, but patients still pay out of pocket for prescription drugs, dental care, vision, and long-term care.
Do Dementia Patients See Things That Are Not There: The Neurology Behind Dementia-Related Hallucinations
Yes, many people with dementia see things that are not there. Visual hallucinations occur in roughly 10 to 60 percent of dementia patients, depending on the type.
Do Face Piercings Leave Scars After Removal? A Tissue-Level Guide to Healing and Permanent Marks
Yes, face piercings can leave scars after removal, but whether a mark stays visible depends on the piercing site, how long the jewelry stayed in, and how your skin heals.
Do Cats Repel Snakes? The Real Mechanisms, Limits, and Practical Odds
Do cats repel snakes? Only partially and unpredictably. A cat can deter some snakes by harassing them, blocking a path, or killing small individuals, but cats are not a repellent.
Can a Herniated Disc Cause Permanent Nerve Damage? A Mechanistic Deep Dive
Yes, a herniated disc can cause permanent nerve damage, but it is uncommon, and the outcome depends less on how large the herniation looks on an MRI than on how long and how severely the nerve is compressed.
Do Breathing Exercises Actually Help Sleep Apnea? What the Evidence Shows
Breathing exercises can help sleep apnea, but only modestly and only for certain people. They reduce mild obstructive sleep apnea (OSA) severity in some adults by strengthening the muscles that hold the airway open.
Do Ficus Like to Be Root Bound? The Science of Pot-Bound Houseplants
Yes, Ficus tolerate and often perform well when moderately root bound, but the popular advice to keep them cramped oversimplifies a real tradeoff.
Do Figs Have Insects in Them? The Real Answer Most Articles Miss
Yes, most commercial figs contain at least trace insect matter, because figs are pollinated by tiny wasps that die inside the fruit.
Do Guys With Deep Voices Have More Testosterone? What the Evidence Shows
Men with deeper voices tend to have somewhat higher testosterone, but the link is modest and inconsistent. Testosterone affects the vocal folds and larynx during puberty, which lowers voice pitch.
Do Chimpanzees Mate Like Humans? The Primate Mating System Compared
No. Chimpanzees do not mate like humans. Human mating typically involves pair bonds, concealed ovulation, and long-term partner preference, while chimpanzee mating is promiscuous, tied to visible sexual swelling, and shaped by male…
Do Lions Mate With Tigers? The Real Biology Behind Ligert Growth, Hybrid Fertility, and Species Boundaries
No, lions do not mate with tigers in the wild. They live on different continents and never encounter each other naturally.
Do Coyotes Live in Florida? Yes — and Far More Than Most Residents Realize
Yes, coyotes live in Florida. The species is now resident in all 67 counties, from the Panhandle to the Keys, and its range has expanded steadily since the 1970s and 1980s.
Do Benzos Prolong QTc? The Deep Pharmacology Behind a Common Clinical Question
Benzodiazepines are not generally considered meaningful QTc-prolonging drugs, and the FDA does not require QTc warnings for benzodiazepines as a class.
Diabetes Complications: The Microvascular and Macrovascular Damage Explained
Diabetes complications arise when prolonged high blood glucose damages blood vessels and nerves through four main routes: glycation of proteins, activation of the polyol pathway, protein kinase C signaling, and oxidative stress.
Do Butterflies Eat Corpses, Poop, and Dead Things? A Deep Dive Into the Science of Butterfly Feeding
Yes, butterflies do feed on corpses, poop, and dead things. Many species routinely visit carrion, dung, and rotting fruit to extract moisture, salts, and amino acids.
Do Braces Cause Smile Lines or Reduce Them? A Depth Look at the Evidence
Do braces cause smile lines or reduce them? They do neither directly in most cases, and the honest answer is that the appliance is not the causal variable.
Do Different Colors of Light Affect the Rate of Photosynthesis? Yes, and the Effect Is Bigger Than Most Reviews Admit
Yes. Different colors of light change the rate of photosynthesis because each wavelength carries a different amount of energy and is absorbed differently by chlorophyll and the accessory pigments.
Do Babies Bleed When Teething? The Physiology, Edge Cases, and Red Flags
No, teething does not make babies bleed. Eruption of a tooth is a sterile, programmed event: the crown pushes through gum tissue that thins and separates ahead of it, and the small amount of bleeding that can occur is limited to minor gum…
Do Cataracts Get Worse Over Time? Yes, and Here Is Exactly How the Lens Fails
Yes. Cataracts get worse over time in essentially every case. The clouding is caused by irreversible protein aggregation and oxidative damage inside lens fibers that the body cannot repair or clear.
Do Facial Masks Actually Work for Your Skin? The Science of What They Can and Cannot Do
Yes, facial masks work, but only within narrow limits. A sheet mask delivers water and humectants that raise the outermost skin layer's water content for roughly 4 to 24 hours, and clay masks temporarily remove surface oil.
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