Only 12% of People Can See This!
Are you that 12 % ?
stare at this image for five seconds and without realizing it the photoreceptors at the back of your eyes will start to become fatigued so much so that when this image turns white you see the green birds as red and the red background is green all of this happens because of biological processes in your eyes that link you to the lives of pollinating insects can help you design bedrooms or rooms in your house to be more satisfying and can also explain why women can see better than men seeing color is so freaking cool it kind of mixes science with sensation and over millions of years our eyes have evolved to see wavelengths on the electromagnetic spectrum roughly between 380 nanometers to around 700 nanometers that's it wavelengths longer than this you get into radio waves and microwaves which our eyes cannot see but they can send a text wavelength shorter than this you get into uv rays and gamma rays again your eyes cannot see but they can damage your cells and cause cancer but if we hone in on the wavelengths of color there are specific patterns that our eyes pick up most people see less than 450 nanometers as violet 450 to 485 nanometers as blue 500 to 550 nanometers as green 570 to 590 nanometers as yellow 590 to 625 nanometers you got gold 625 nanometers and above you get red now no object actually possesses any color which is so weird to say all an object does is absorb certain wavelengths of light and then reflect others for example this gorgeous teal seafoam coral blue is absorbing all the colors except for that seafoam teal gorgeous blue which is being reflected to your eye and your brain is interpreting this as color for example if you're looking at one of my favorite flowers the goldenrod which blooms in august the flowers are absorbing every wavelength of light except for the ones between 590 to 625 nanometers again as we said earlier which most people see as gold this light is sent to your cornea which bends it towards the pupil that controls the amount of light hitting the lens which focuses the wavelengths onto the back of your eye called the retina at the back of your eye the retina is covered in photoreceptor cells called cones you have around six million cone cells which absorb light and pass it onto the brain's visual cortex to be interpreted as color this is a biological process that's happening all the time you're looking at this screen i'm looking at this blue sky you're looking at me i'm looking at you and oh this is a connection my friends now your cone cells at the back of your eye are divided into three different types you got red cone cells green cone cells and blue cone cells rgb since you have three types you are visually trichromatic so you can walk around order your coffee and say by the way you me we're trichromatic some other animals for example are tetrachromatic and can even see within the uv wavelengths some birds some fish which i'm sorry are cooler than us that's a rad thing to do they are superheroes we are measly trichromats sit down folks because this science is complicated but the red cone optimal for perceiving the color red the blue cone optimal for perceiving the color blue and you guessed it the green cone optimal for perceiving the color grain but these cells work in combination for you to see over 10 million different colors unless you're 12 percent of women who can see way more than that more on that later but the nature of these cone cells are what create complementary colors that we perceive as satisfying now a complement is something that lacks a hole so for example this circle is a complement of this rectangle with the missing section together they make a hole that's a whole wh w-h-o-l-e not a hole like here here here or a couple down here if i showed you the ones down here we'd be on a different tube site according to the physics of light a complementary color for your eye are two colors that when combined produce white light it's a law of nature it's fascinating it's why we have complementary colors for our eyes and it has to do with how our cones work look at this black and white image if we put on the complementary colors of the original picture and you stare at this dot for a few seconds due to the specific stimulus on your eye the background we used and the perception of your red green and blue cone receptors when we put back this black and white image you see the color i do this all the time just for fun i'm like gosh dang my eyes and brain are insane the reason that this happens is because your eyes are so sensitive to these wavelengths that the cones become overused and oversaturated when looking at the same color the stimulus can start to spread to other cones nearby and when the stimulus is taken away the tired cones and your visual cortex default to seeing the complementary colors this is why we love looking at complementary colors beside each other they have energetic reciprocity going back to this image when staring at the green your green and blue cone cells become fatigued but the red isn't really being used in these sections so when you switch to white your brain reads these sections as red the red cone start to trigger your brain to see red it's all just about perception it's wild because it's like through these two little things that i'm seeing everything and living my life purple and gold are a reciprocal pair that our trichromatic eyes and the eyes of bees see very similarly golden rod and purple asters grow together so that bees find them attractive and this increases their pollination these flowers evolve to grow together to help pollination with bees they weren't for us but because of the energetic reciprocity of our cones being similar to that of bees we get to reap the benefits of this energetic beauty when looking at flowers when you see gold and you see purple and it feels good thank the bees when designing a room take a look at this light complementary color wheel if you focus on the complements of each other throughout your room you're going to be designing pleasing scenarios for the cones of your eye this can really help you make decisions about how you're going to design your room just think about the physiology of your freaking brain now for men seeing color can be more of an issue this is because the genes that encode red and green cones show high sequence homology on the x chromosome so although gender and sex can fall on a spectrum for the most part people who identify as women have xx chromosomes and people who identify as men have x y chromosomes and it's this y chromosome for people like me who have a y chromosome we are more likely to not be able to see red and green as well this is why statistically men are much more likely to be colorblind but on top of this there's a lot of new research but it is starting to be found out that 12 of women are actually tetrachromats they have an extra cone and can see a hundred times more color than the rest of us i got into a rabbit hole of all this research after being in nature and just looking at all these beautiful colors that were so soothing to my eye my brain my perception and it almost just was like what is beauty science has a hard time defining beauty you know beauty is in the eye of the beholder but when you look at these complementary light color wheels you start to realize there are some things we can do in our lives to better understand the physics of light our eyes and our brain and utilize this thinking to benefit our lives essentially this is just a video enticing you to get out there and of course stop and smell the flowers but also stop and look at those flowers see you next week for a new science video peace
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What Happens When You Quit Salt?
salt consumption has increased by 50 percent over the last 40 years in the US with the average American consuming 3 400 milligrams of salt a day which is nearly double the amount of salt that's recommended but given that high salt intake is associated with high blood pressure kidney disease stroke and heart disease what actually happens if you quit salt to tackle this question we're first going to start with what happens when you decrease your salt and then we'll move into what would happen if you completely cut salt out of your diet because spoiler alert the results are very different first up a low salt diet which could range from around 1500 milligrams to around 2300 milligrams per day after one week you might not physically feel the difference but your body has already lowered its blood pressure your kidney is responsible for this by regulating what's inside your blood vessels when you're well hydrated and drinking fluids it tells your body to excrete any extra water and if you're dehydrated it sends a signal to not only increase thirst but to cause reabsorption of your fluids in the kidney making your body hold on to more water water this is all in an effort to keep the perfect balance of water and salt between your blood and cells but consuming lots of salt can sometimes get in the way of this process since your body can't produce its own we consume salt through the diet where it's eventually absorbed into your blood normally your kidney would eliminate any excess salt that your body doesn't need similar to how it regulates excess water but over time with high salt intake your kidney can't exactly keep up with filtering it all out which means your blood stays more concentrated with sodium this extra sodium in your blood ends up pulling water from your cells into your blood through osmosis because the water wants to be where the sodium is and that ideal concentration gradient between them is thrown off this ultimately leads to an increase in your blood volume which increases blood pressure and years of research has shown increased blood pressure over long periods of time is associated with many health conditions so by consuming a low sodium diet you minimize the risks of having chronic high blood pressure a few weeks into low sodium and you may be feeling less stressed recent Studies have shown that high levels of salt not only increases stress hormones in the body but that when you're challenged with a stressful situation the hormonal response to it is much more Amplified while these early Studies have been done on mice further research aims to look directly at stress hormones in humans and also examine Salt's role in anxiety and aggression after four weeks you might start feeling lighter because reducing sodium in your diet can reduce bloating the dash sodium trial one of the biggest trials looking at blood pressure and diet showed that high sodium increased bloating in a dose-dependent manner regardless of the type of diet in other words as you decrease salt you're likely to decrease bloating proportionately now the short-term benefits of a low sodium diet are great but the real benefits are long-term a recent study completed in 600 villages in rural China had individuals with a history of stroke or those over the age of 60 with hypertension consume low salt diets they found that reducing salt in the diet reduced Strokes major cardiovascular events and death within five years so how do they actually cut their salt intake they simply substituted 30 percent of sodium chloride typical table salt with potassium chloride salt while it doesn't taste the exact same it's actually a really clever way to make something a little more salty without having to add sodium which is the main culprit and health issues because it's so often over consumed potassium consumption on the other hand is typically under consumed and adequate potassium intake can help improve blood pressure regulation so there's benefits of reducing salt for many people particularly those who have hypertension but what would happen if you completely cut sodium out of your diet it would be pretty hard since nearly everything you consume has some level of salt in it but let's play it out it's obviously important for your body your nerves signal what the use of salts are muscles contract and relax thanks to salts it's also involved with helping transport nutrients throughout the body so when you don't have enough your body enters a state known as hyponatremia just like too much salt not enough can cause problems between the blood and cells but this time in an attempt to get the salt concentration and gradient back to normal your body starts excreting Water by getting rid of water it helps to solve one problem but this can lead to severe dehydration within one week you might begin to feel nauseous and start vomiting of course vomiting can also reduce any sodium left in our body which would make the condition worse after two weeks you may start to get random muscle twitching because our muscles require sodium for Contracting and relaxing and after three weeks it's likely that the brain would begin to increase in size because the vessels surrounding the brain have less salt compared to the tissue so the water moves into the cells the osmosis resulting in swelling this will first lead to confusion and can eventually cause seizures and bring you into a coma and I know what you're thinking just add some salt back into the diet and you're back to normal but there's a catch we actually can't correct our blood sodium too fast or we can cause osmotic demyelination because the brain gets dehydrated this is why going too extreme on salt reduction can be risky particularly for people who are not at risk for hypertension in the first place some data suggests that low sodium diets can not only impact your mental Clarity and focus but taken too far can actually increase the risk of cardiovascular disease as well while many people do eat too much salt if you're a healthy person eating mainly Whole Foods or low carbs which hold on to water for your body or doing a lot of exercise it's important to maintain or ingest salt into your system and if you don't have hypertension or a risk for high blood pressure studies generally show it's not something you need to overthink it's really about finding that Goldilocks range not too high and not too low which guidelines typically say is around 2 300 milligrams per day for most people for many people your body will tell you what you need if you're craving it or feeling grossed out by salt just listen to your body but of course does always talk to your Healthcare professional to figure out whether on either end of the extreme Spectrum after all some individuals are more sensitive to Salt than others for example women of all ethnicities and age groups have been shown to fall into this category so higher salt diets may be a bigger risk like everything in life the dose is the poison and in this case too much or too little can hurt you but what for watching hopefully this has been useful and educational for you if you liked it make sure you like the video otherwise subscribe for more science in the very near future peace
By TBH Agencia Exclusiva Colsanitasabout a year ago in Chapters
Fair Exchange, No Robberies
Dark Memoirs - Index There are at least two kinds of people in the world: those who write this half-arsed kind of intro to a story that looks to separate the rare and the norm, and those who realise it's an overused framing device and don't.
By Paul Stewart11 days ago in Chapters
Having Any Type Of Life Means What For Hobbies
Life and hobbies go hand and hand, as we all know. The question is, what can having any time of life mean for the hobbies that are involved in it? What type of life can we have with the hobbies we do? Do we look at how we live our lives first and then figure out what hobbies can fit into them? To answer both of these questions, yes we can. As we live the lives that we do, our hobbies will evolve, if we are always on the go our hobbies will be this way, and if we move slower in life then our hobbies will be slower. That I am sure of, I have experienced both of these things. The faster I move in life the faster I do my hobbies and the same goes for when I do things slower. For example if you work out for a hobby you are usually moving quickly to get the most out of your workouts, and or how you are living your life. If you are always out, sometimes having a day at home can feel like a hobby or if you are always at home going out can feel like a hobby. It all depends on how you look at your life and what you think hobbies can be for you.
By Louise Barraco6 days ago in Chapters
Comments (4)
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