Why Can Some People Sing Well Without Training?
Some people sing well without training because singing accuracy is partly inherited and partly shaped by childhood music exposure. A twin study found that genes explained about 41 percent of …
Why Do Some People Have a Strong Preference for Salty vs. Sweet Snacks?
Your snack preference comes from a blend of genes that shape how strongly you taste sweet and salt, early food experiences, and daily habits. Twin studies suggest that sweet preferences …
Why Do Some People Have Extremely Realistic Dreams?
Extremely realistic dreams usually come from vivid REM sleep, the stage when your brain is most active, combined with triggers such as stress, lost sleep, medications, or hormonal changes. Some …
Why Do Some People Never Seem to Get Bored of Repetition?
Some people never tire of repetition because their boredom threshold sits higher than most. Researchers call the opposite trait boredom susceptibility, and it belongs to a personality dimension that twin …
Why Are Some People Magnets for Bees, Wasps, or Ticks?
Bees, wasps, and ticks respond to cues such as scent, heat, breath, sweat, color, and movement, and people differ in how much of each they give off. Genes may play …
Why Do Some People Get the Urge to Jump Off High Places (“Call of the Void”)?
The urge to jump from a high place is usually a harmless brain glitch, not a hidden wish. Researchers call it the high place phenomenon. Your brain fires a quick …
Why Do Some People Not Yawn When Others Do (Contagious Yawning)?
Some people do not catch yawns because susceptibility to contagious yawning is a personal trait that varies a lot and stays remarkably stable over time. Age explains a small part …
Why Can Some People Hold Their Breath Much Longer?
Some people hold their breath longer thanks to a mix of larger lung capacity, a strong diving reflex, a calmer response to the urge to breathe, and practice. Genes contribute …
Why Do Some People Feel Intense Emotion From Nostalgia?
Some people feel nostalgia intensely because they are wired to be more emotionally sensitive and more tied to the people in their memories, and that wiring is partly inherited. Twin …
Why Asparagus Makes Your Pee Smell (and Why Not Everyone Notices)
You eat asparagus at dinner, and within the hour, something unmistakable happens. For some people, it’s a strange, almost sulfurous smell they notice every single time without fail. For others, …