Human bodies come in a variety of different shapes, colors and sizes. Some people are tall, while others are short. Some folk are thin, yet others boast fuller figures. However, in addition to these obvious divergences, some individuals possess extremely rare traits. So with that in mind, here’s a look at a few of the more interesting.
1. A second row of eyelashes
Many people strive to have fuller set of eyelashes. But did you know that some folk actually have an extra line of the little hairs? This is actually a condition known as distichiasis, and it ordinarily occurs on all four of a “sufferer’s” eyelids. In some cases, however, only a single lid or the bottom two might exhibit extra tiers of lashes. Apparently, Hollywood star Elizabeth Taylor was known to have distichiasis.
2. Palmaris longus
Here’s a little experiment. Take a look at your upturned wrist as you push your thumb and little finger against one another. Did you notice a large tendon poking out from underneath your skin? If so, you’re one of a majority of the world’s population that possesses a muscle called the palmaris longus. Once utilized when our species needed to scale trees, it’s now useless – and absent in around 14 percent of individuals.
3. Preauricular sinus
If you take a look at people’s ears, it’s not all that uncommon to note a small hole embedded within the cartilage. This is called the preauricular sinus, and like the palmaris longus, it’s useless today. However, there are those that believe it represents the leftovers of gills from way back in our ancestry.
4. The gene that combats sleep deprivation
Rumor has it that former British Prime Minister Margaret Thatcher used to get by on just a few hours of shuteye per night. This might seem unbelievable, but there’s actually a condition which might account for such modest levels of sleep. You see, some people possess a variation of a gene called BHLHE41 – meaning that they’re more resilient against tiredness.