For many people , there is something disturbing the clown's make -up that renders their facial expression as an unnatural , fixed grin or smile . This means we can't read their true emotions , putting us on edge . It's probably no coincidence that many of the most infamous horror characters also conceal their faces in some way - think of the scream mask , or leatherface form the Texas Chainsaw Massacre. When the clown also behaves aggressively or menacingly, the contrast with their playful costume and grinning features just adds to the creepiness . But context is everything : children cn find friendly , silly circus clown hilarious .
•° WHY DOSE DEPRESSION MAKE YOU DREAM MORE?
People suffering from depression may experience unusual pattern of sleep. Typically, they move into REM sleep ( the stage in which we are most likey to dream) more quickly and there may be a greater numder of eye movements per unit of time during this stage of sleep. People who are depressed may wake of sleep. People who are depressed may wake up more frequently during the night , and are , therefore , more likey to remember their dreams. Finally , there is some evidence that certain medications of depression can increase the frequency of nightmares. Other medications appear to do the opposite, but nightmares can occur during withdrawal from these drogs .
•° WHY DO DIZZY WHEN WE SPIN?
When you move your head the acceleration is detected hairs lining the side of fluid-filled tubes in your inner ear. It you spin for long enough,the brain gets desensitised to the constant turn signals from your ear, and adjusts to zero then out . When you stop , the ears correctly report zero turning , but your brain is still actively cancelling this out and so it thinks you are now spinning in the opposite direction.
•° WHAT'S IN ... LIPSTICK?
The ingredients of lipstick need to create something that provides a glossy , smooth colour , which doesn't wipe off immediately , and is considerate to rather delicate partvof the body . The major constituents of lipstick are just wax and oil , but your favourite lippy could also contain material derived from sheep , insects , fish and hot chillis!!!!
WAX - 30% often a mixture of beeswax , carnauba and lanolin (from sheep wool) . together there form the main structure of the lipstick .
DYES - 5% This varies depending on the colour , but a scarlet shade might contain carmine red , which is derived form scale insects .
OIL - 65% Typically castor oil , this provides glossinees and dissolves the dyes .
GUANINE - Derived form fish scales , this gives the lipstick pearlescent sheen.
CAPSAICIN - The chemical that give chillis their heat is added to some lipsticks to make the lips swell slightly , giving them a plumped-up look
•° WHY ARE MOST PEOPLE RIGHT - HANDED
Many animal show a preference for one side of the body over another , but the split between right - and left- handed varies. Seven out of 10 chimpanzees are right - handed , but almost all kangaroos are left- handed . In cat , males are nearly all left- handed and females are nearly all right - handed . Human have a higher proportion of right -handed than any population . This is because we are a tool-using species , and also highly social. The very earlist flint tools , around two million years ago , don't show a strong bias towards left - or right-handed versions . But it's a big advantage if you cn use the tools someone else has made , and from about 1.5 million years ago , we seem tl have standardised on the right - handed versions .It's not exaclty clear why right- handednesss won , but it may be that one side of our brain was already specialised for fine - motor control. One theory why left- handedness hasn't been completely eliminated is that it provides an advantage in combat , precisely because it is rarer , and therefore , unexpected . You can see this today in sports like tennis , where left - handed professionals are more common than in the general population.
•° IS BEING SINGLE BAD FOR YOUR HEALTH?
It so sometime argued that being in a relationship can offer health benefits . The research cited in support of this argument says that those who are married are , on average , healthier than those who are not . However , the situation is likely to be much more complex than this . Fox example , it is not clear whether being In a relationship officer health benefits or whether there are other explanation for this association . Furthermore , whereas being in a relationship may be linked to certain health advantages, it could bring health risks too. Research suggests for example, that people who are married are more likely to be overweight than those who are not . Finally, one size does not fit all . Whereas being who are not . Finally , one size does not fit all , whereas, being in a dysfunctional one is unlikely to do so
•° WHY DOES MUSIC MAKE US FEEL GOOD?
At a basic level , it is to do with how our brain have evolved to find it rewarding to look for and find meaningful patterns in sound. Research suggests there is something particularly satisfying about a piece of music that is in some ways familiar but also contains a few surprises. Music can also make us feel good by amplifying our current mood (think of the 'pleasure' of wallowing in a sad song when memories . Then there's the social the side ; singing along with friends to a new tune from your favourite band fosters a powerful sense of belonging.
•° IS IT POSSIBLE TO SLEEP WITH YOUR EYES OPEN?
Not normally , but there is a condition called nocturnal lagophthalmos where a sufferer is unable to shut their eyelids when asleep . According to one review , this occurs in up to 5 per cent of adults . This can be due to a variety of factors , including protuding eyes or abnormalities of the eyelids . There are also cases in which the cause has not been estabished .