Ever wondered why you’re left handed? Or confused by why we yawn? Take a look at the human body’s biggest mysteries.
If it’s a good mystery you’re after, look no further than the bathroom mirror. You might think scientists would have charted every aspect of their home turf by now, but they haven’t.
Here are seven of the biggest body bogglers. Man revealed many secrets about himself, but left a huge number of other questions, the answers to which we are still looking. These are the mysteries science can’t easily debunk, the kinds that defy natural laws and how we’ve come to understand ourselves. So here’s what we’ve seen; you decide what to believe from these INCREDIBLE human mysteries.
10Pubic hair
Human evolved to lose almost every hair on their body – except their pubes. This could be to keep our genitals warm, or even act as a barrier to reduce friction during sex.
09Autism
One of 100 people has autism, which causes social and language problems. It might be linked to abnormally fast brain growth in childhood and parts of the brain becoming easily overstimulated.
08Hypnic jerk
Science can´t answer why 70% of people experience sudden twitches before sleep. These muscle contractions could be an ancient reflex to signal that a sleeping primate is falling out a tree.
07Pregnant super smell
A woman might realize she´s pregnant simply by developing a height-ended sense of smell. This pregnancy super-power in rumored to stop women inhaling dangerous fumes that might damage their baby.
06Biological dark matter
There is a mysterious genetic life from which cannot be classified as animal, bacteria, or virus. It comprises 95% of the human genome and we have no idea what it is.
05Large breasts
Unlike other mammals, women´s breasts are permanently enlarged even when they´re not breastfeeding. Some scientists think big boobs mimic the swollen butts of our fertile monkey ancestors.
04Handedness
Nobody knows why only 10% of the world´s population is left-handed. Lefties could be survivors of “vanishing twin” syndrome, outliving their mirror image sibling in the embryonic stage of pregnancy.
03Sun sneezing
1/3rd of people sneeze when they look at bright lights and we´re not really sure why? Scientists suspect a neurological mix-up between light stimuli and the sneezing reflex… they call ACHOO syndrome.
02Dreaming
25% of every night´s sleep is spent dreaming – but we don´t know why? Psychologist Freud thought dreams symbolized sexual desire and now scientists think they help us solve problems through metaphorical thought.
01Yawning
Yawns have been studied for 2.500 years and they´ve been linked to everything from primitive communication to sexual arousal. Some antibiotics even cause people to orgasm when they yawn.
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