We’ve tickled our way to some insights, but we’ll need more laughing rats, chimps, and people before the whole tangled tickle mess unravels. This story is part of Popular Science’sAsk Us Anything series, where we answer your most outlandish, mind-burning questions, from the ordinary to ...
The reason why we feel ticklish is because our body is covered in small hairs. These help us to feel danger that might be too small to see – like bugs. People who are ticklish can feel bugs land on them, and flick them off before they bite. This helps to avoid getting bitten by p...
When people tickled themselves in this way, they didn't rate the sensation as very ticklish. However, when the robot transferred the tickle-movements with a slight delay of 100-300 milliseconds, it felt a lot more ticklish. The small time delay was enough to scupper the brain's power to ...
Researchers at the Karolinska Institute in Stockholm, Sweden, studied fMRI scans between people who were actually being tickled and those who were about to be tickled and were anticipating it and discovered that the brain reacts the same to both. Specifically, the somatosensory cortex and the seco...
Not much of a reaction, is there? But imagine that same finger making its way slowly toward your ribcage, just above where it meets your underarm. Perhaps you've just drawn your arms closer to your sides to protect this sensitive area from being tickled by the hypothetical finger. Do ...
While some people like it dirty (and not in the Xtina way), feet that aren’t clean leave your partner at risk for cuts, sexually transmitted infections (STIs), and other types of infections. “With penetration, long and sharp toenails could cut the sensitive skin around your partner’s ...
laughter is a quality people are born with D. laughter is a social response shared by all creatures68.According to the passage,scientists studied rats in order to find E. if they can laugh F. if they like laughing G. what laughter in rats produces . how rats react while being tickled69...
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While rib-tickling jokes and hilarious videos certainly do make us giggle, most of the time we laugh because of something much simpler: being with other people. So much so that we are 30 times more likely to laugh when we're with ...
While many scientists believe ticklishness is a reflex, some — like Charles Darwin — theorize that it’s actually a social-bonding behavior instilled at an early age by parents. Darwin posited that laughter results from the anticipation of being tickled: Children who expect to be tickled will...