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4 surprising facts about the color red

Seeing red causes people to react faster and more forcefully, according to a new study published in the journal Emotion. Our bodies react to red, a culturally ingrained signal of danger, as if we’ve seen a threat

Men in red are “more attractive, more powerful and more sexually desirable to women,”

A 2005 study by British scientists found that athletes wearing red “have an advantage over blue-suited competitors,” according toMSNBC. “We find that wearing red is consistently associated with a higher probability of winning,” the researchers wrote in the journal Nature. Theeffect is subtle, though, so it may only factor in when evenly matched competitors face off.

Seeing “even a hint of red” on an exam can affect a test-taker’s performance “to a significant degree,” researchers reported in 2007. Perhaps because instructors often use red ink to mark errors, people associate the color “with mistakes and failures,” and, “in turn, they do poorly on” the exam in front of them.

The linked article is fantastic.

Indeed, previous studies have shown that athletes competing against red-clad opponents are more likely to lose, and students taking IQ tests more likely to receive lower scores after seeing red.

Firstly, 30 students were each given a number written in red or gray crayon on white paper. They read their numbers aloud before pinching open a metal clasp.

In the second experiment, 46 undergraduates had to squeeze a handgrip as hard as possible upon seeing the word “squeeze” appear on a computer screen, displayed on a red, blue, or gray background.

The researchers found that the students who saw red numbers exerted more force in the fingergrip experiment. Likewise, the participants who saw the red background squeezed harder than those who saw blue or gray ones. Furthermore, they reacted more quickly to the appearance of the word when it was on a red background.

“Red enhances our physical reactions because it is seen as a danger cue,” said Elliot in a press release.

This suggests that “red may be beneficial for activities like athletic events requiring short bursts of brute force” including weight-lifting, according to the paper. 

The authors note that “threat also evokes worry, task distraction, and self-preoccupation, all of which have been shown to tax mental resources and interfere with effective self-regulation.”

“Color affects us in many ways depending on the context,” said Elliot. “Those color effects fly under our awareness radar.”

It’s interesting that seeing something red can provoke the fight or flight response.

Red causes worry and can intimidate - so that’s why it’s effective for athletes to wear it, and that’s why it impairs test-taking.

With respect to sexual attraction, it’s a different mechanism. This linked article was helpful.

Bright red pigmentation is an indicator of male dominance in a wide range of animal species, from robins to baboons.

 The authors also speculate that the tradition of “rolling out the red carpet” for celebrities and dignitaries has created a cultural perception of red as an indicator of social status.

Perhaps high status men were able to kill beasts, and that gave them their bloody color. Who knows. Either way it’s interesting that red is linked with dominance.

via @alyssa_milano

    • #red
    • #psychology
    • #brain
    • #color
    • #unconscious
    • #influence
    • #interesting
    • #cool
    • #blood
    • #fight
    • #flight
    • #repsonse
    • #intensify
    • #physical
    • #reactions
    • #faster
    • #stronger
    • #hotter
    • #more
    • #desirable
    • #sexier
    • #sexy
    • #winning
    • #winner
    • #failure
    • #exams
    • #wrong
    • #fear
    • #panic
    • #anxiety
  • 1 year ago
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The Biology of Sleepy Seeds - rheum/gound
It is…

“rheum”, which is the name for discharge from your nose, mouth or eyes during sleep. More specifically, eye rheum is known as “gound”. Gound is made up of a mixture of dust, blood cells, skin cells, etc. mixed with mucus secreted by the conjunctiva, as well as an oily substance from the meibomian glands. The meibomian glands are a type of sebaceous gland that line the rim of the eyelids with about fifty on the top and twenty five on the bottom of each eye. They secrete an oily substance called meibum that performs a variety of functions including: helps seal your eyes in an air tight fashion when they are closed; prevents tears from spilling onto your cheeks; and helps keep tears that coat your eyes from evaporating. It is this oily substance that is one of the primary components in gound, mixed with mucin from the conjunctiva and various foreign particles in your eye. Normally, when you are awake, the gound is naturally washed away via tears and the blinking motion. However, as you sleep, you obviously don’t blink so the meibomian secretions and other components of the gound tend to gather in the corners of your eyes, as well as along your eye lines and dries out, creating hard yellow-ish “eye boogers”.
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The Biology of Sleepy Seeds - rheum/gound

It is…

“rheum”, which is the name for discharge from your nose, mouth or eyes during sleep. More specifically, eye rheum is known as “gound”. Gound is made up of a mixture of dust, blood cells, skin cells, etc. mixed with mucus secreted by the conjunctiva, as well as an oily substance from the meibomian glands. The meibomian glands are a type of sebaceous gland that line the rim of the eyelids with about fifty on the top and twenty five on the bottom of each eye. They secrete an oily substance called meibum that performs a variety of functions including: helps seal your eyes in an air tight fashion when they are closed; prevents tears from spilling onto your cheeks; and helps keep tears that coat your eyes from evaporating. It is this oily substance that is one of the primary components in gound, mixed with mucin from the conjunctiva and various foreign particles in your eye. Normally, when you are awake, the gound is naturally washed away via tears and the blinking motion. However, as you sleep, you obviously don’t blink so the meibomian secretions and other components of the gound tend to gather in the corners of your eyes, as well as along your eye lines and dries out, creating hard yellow-ish “eye boogers”.

    • #biology
    • #sleepy
    • #sleep
    • #seeds
    • #eye
    • #rheum
    • #gound
    • #nose
    • #mouth
    • #eyes
    • #dust
    • #blood
    • #cells
    • #skin
    • #muxus
    • #conjunctiva
    • #meibomian
    • #sebaceous
    • #eyelid
    • #oily
    • #meibum
  • 1 year ago
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Why Your Nose Gets Runny When It is Cold

the blood supply to your nose actually increases as a response to the cold air, via tiny blood vessels in your nose dilating to increase the blood flow. This helps keep your nose warm as you breathe, as well as begins to warm the cold air you’re breathing before it enters your lungs. This increased blood flow doesn’t just help warm the air though, it also has a side effect of providing a lot more blood than normal to the glands which produce the mucus in your nose. This, in turn, causes them to start producing snot at a much higher rate than normal, which causes your nose to run when you’re breathing the cold air.

    • #nose
    • #runny
    • #cold
    • #biology
    • #blood
    • #supply
    • #increases
    • #air
    • #vessels
    • #dilate
    • #warm
    • #lungs
    • #lung
    • #snot
  • 1 year ago
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Cuts to veins and arteries are rare.
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Cuts to veins and arteries are rare.

(via sirenpsychology)

    • #biology
    • #veins
    • #arteries
    • #capillaries
    • #blood
    • #pic
    • #bleed
    • #flow
    • #red
    • #description
  • 2 years ago > untilasinglesolitonsurvives
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Serotonin, Bones, Stress, Osteoporosis - cool little connection

Saw this:

gut serotonin can directly control bone formation. It is released into the blood, and the more serotonin that reaches bone, the more bone is lost. Conversely, the less serotonin, the denser and stronger bones become. Dr. Karsenty was even able to prevent menopause-induced osteoporosis in mice by slowing serotonin production.

Ninety-five percent of the body’s serotonin is made by the gut, but gut serotonin cannot enter the brain because it is barred by a membrane, the so-called blood-brain barrier.

More here:

a gene in the gut, Lrp5, controlled serotonin synthesis. Manipulating this gene caused changes in bone formation. Thus, Dr. Karsenty concludes, “The findings demonstrate without a doubt that serotonin from the gut is acting as a hormone to regulate bone mass.”

More here:

Working primarily with mice, they set out by introducing genetic mutations that reduced production of the Lrp5 gene in the gut. This caused higher than normal levels of gut serotonin and also low bone mass. Next they introduced a mutation that increased Lrp5 activity, which resulted in lower levels of gut serotonin and denser bones. 

gut-produced serotonin does not cross the blood-brain barrier (as SSRI class drugs do), and so is not directly related to that manufactured by the brain. But Dr. Rubman reminds us that this does not mean it doesn’t play a role in stress. For example, think about that queasy feeling you get in your stomach before making a speech or opening your credit card bill. Both kinds of serotonin — that produced in the gut as well as that produced in the brain — help soothe this type of stress by contributing to our ability to maintain equanimity in the face of challenges.

So the idea is that serotonin is required to deal with daily or continuous stresses, and just as the stress can be damaging, the large amounts of serotonin needed to deal with that stress may have some undesirable effects as well.

    • #stress
    • #serotonin
    • #bone
    • #bones
    • #osteoporosis
    • #gut
    • #intestine
    • #blood
    • #biology
    • #psychology
    • #cool
    • #brain
    • #lrp5
    • #ssri
    • #sooth
    • #damaging
  • 2 years ago
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