- Christopher Halliwell
- Brookhaven, MS
- United States
Secondary Education Physics, Mississippi State University
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What is the advantage of evolving the ability to cry?
Is it simply a result of evolving the ability for complex emotions?













Laura Esche
very interesting and understandable information on the physical aspect by Sue Gerhardt in her book "Why love matters" http://www.whylovematters.com/
or on a bit of a strange page but a nice text http://www.reconnections.net/emotions_index.htm
http://www.health-science-spirit.com/Feelings.html
or by a rather controversial person but with quite some depth to what he has to say about emotions in general http://www.youtube.com/watch?v=5Tf0LfgQdg8&list=PL74BB47660A6A105B&index=32
there are so many different takes on the matter of crying and emotions, but it all comes down to the one thing: suppressing them is not healthy and only serves the purpose of fitting in, appearing normal, feeling safe.
exploring ones own emotions can be a somewhat confusing or frightening experience at first but the moments we decide to embrace them fully are the moments when we are really alive! And it's only gonna get better, there are nice emotions too ;-D every emotion is a good emotion, it just depends on our beliefs about the emotion, such as "a man shouldn't cry or be vulnerable, especially not in front of others", whether we can allow ourselves and others to express whatever needs to be expressed in that moment.
So, that would be my take on this,
nice thread :)
Pabitra Mukhopadhyay 30+
And I thought that bein' strong meant never losin' your self-control
But I'm just drunk enough to let go of my pain
To hell with my pride, let it fall like rain
From my eyes
Tonight I wanna cry"
Anna Kazcorowska 10+
Pabitra Mukhopadhyay 30+
Derek Young 30+
http://www.helium.com/items/614823-how-crying-helps-you-to-heal
Crying by itself is a sexless trait, but socially, females are associated more with crying, though I've seen plenty of men cry and not from any physical pain either.
Nathan Cook
pat gilbert 100+
Colleen Steen 500+
Perhaps if we (women) have learned ways of manipulating with the act of crying, it means we are more evolved! LOL:>)
pat gilbert 100+
Colleen Steen 500+
Pabitra Mukhopadhyay 30+
However, I think biologically males are better looking than females. If you look around among higher order animals, males stand out for their beauty and elegance. I have a feeling that is somewhat vain, except for mating purpose.
Colleen Steen 500+
Better looking Pabitra? I'm looking at your photo....guess it depends on what "tribe" one is a members of:>)
Pabitra Mukhopadhyay 30+
Colleen Steen 500+
Pabitra Mukhopadhyay 30+
Colleen Steen 500+
I have discovered that the life journey is more enjoyable when we "travel light":>)
Anna Kazcorowska 10+
Men cry too and when they actually do that and show their emotions they also tend to attract women. I don't know any child, girl or dame who would say "I saw him crying, that means he's weak and manipulative." Doesn't seem too plausible. Manifestation of grief? For a child not getting a candy may lead to grief. For a woman not getting a hug may lead to grief. Please define grief :)
And tears are used by males in other species as well. When males in some species of rodents (I don't remember which ones, sorry) put their own tears on their fur they attract the females who become more likely to get into the state of "lordosis" around them - the position in which a female rodent lifts her tail and is ready to mate.
So - tears have a role in evolution :) In alienation - getting rid of surplus emotions. Among others in the tribe - getting rid of surplus emotions and sometimes getting something. Or not getting anything and being called weak and manipulative :) And with less evolved beings - getting a sexual partner.
Ben Jarvis 50+
Solaiman Akbar
Ben Jarvis 50+
Arkady Grudzinsky 50+
Why can't we signal grief and comfort each other by rubbing our noses together? Why cries and tears?
Ben Jarvis 50+
also your example is not of rationality. if we were rationalizing the existence of stones we'd see that they aren't 'for' anything until we give them a purpose. deciding that stones must be for killing mammoths is the exact opposite of rational thought!
Arkady Grudzinsky 50+
With that said, substitute "stones" for "tears" and "killing mammoths" for "expressing emotions".
Ben Jarvis 50+
there is no evidence that stones evolved, nor any precedent nor similarities, however there is a lot of evidence that human physiological responses have evolved, many precedents that lead me to suggest this conclusion (facial expressions, growls etc to name but 2 more) all of which are similar - a human physiological response to stimuli.
by your own argument, we could not possibly conclude that lack of air in a tyre is the cause of poor vehicle handling! utter nonsense to dismiss something out of hand because you personally declare it to be unknown.
Arkady Grudzinsky 50+
You seem to say that people cry with tears to signal emotions to other people. Signaling emotions to each other plays important role for social survival. Therefore, crying with tears to signal emotions is justified for evolutionary purposes. Right?
While signaling emotions is important, it is unclear why crying with tears is a suitable or the best way to do that.
Blushing can be explained by hormones produced as a result of emotion affecting blood circulation and breathing. Blushing may serve as a signal of emotion because of the connection between emotion and blushing. But, in my opinion, it is incorrect to say that "people blush to signal emotions".
Similarly, people may cry as a result of emotion because certain emotions may, for instance, happen to excite areas in our brain responsible for secretion of tears. Just as with blushing, I don't think crying has a purpose of signaling emotion, because crying is not the only and not the best way of signaling emotions. It is used for this purpose like the stone is used to kill a mammoth, but, in my opinion, it has not "evolved" for this purpose nor it is caused by our need to signal emotions.
I hope, you find this reasonable.
Ben Jarvis 50+
it is a suitable way to do that, as evidenced by thousands of years of human social life. i didn't say it was the best way, it's just the way that evolved and it does the job.
your opinion is wrong, but that's understandable because you are again looking at only one point. there are many purposes of blushing and flushing, one of them (and only one of many) is just as you said, another one of them is a sexual signal, useful for a pre-verbal human.
again i didn't say crying was the only way, i said it clearly has a purpose which it achieves. we could possibly have developed other ways, some of them could be better, but this is what happened to evolve and it works so it remains part of human physiology. it is not in any way similar to how a stone is used to kill a mammoth. crying is innate while throwing a stone is not (we have to think about it and choose to do it), crying is a reaction while throwing a stone is not, just to give two.
indeed it has not evolved for any purpose at all, that's not what evolution is about. new traits come up, and if they are useful they get kept, that's all. a likely scenario is one day a human was the first to cry. it provoked a response from members of the group who rendered assistance, increasing the chance that that human would survive and bear children who would also cry when they were upset. that's not my opinion, that's a conclusion drawn from evidence.
i think this question might help you understand: why did we evolve fingers?
Arkady Grudzinsky 50+
However, why we signal emotions through crying and not by other means is a more complex question as noted at the end of the article:
"In order to explain why a species exhibits this trait rather than that trait, you need to know what the null hypothesis is (otherwise you can make a selective explanation for both a case and its opposite equally well). Perhaps it has this trait because its ancestors had it and it has been maintained by selection. Perhaps it has it because it would be too disruptive of the entire genome and developmental machinery to remove it. Perhaps it has it for reasons to do with genetic drift, simple accident, or whatever. In order to make a good scientific explanation, says Griffiths, you must know a fair bit about the phylogeny of the species, its environmental distribution, and how the processes that create the trait work at the level of genes, cells and zygotes.
This leads us to the question of what a scientific explanation really is; indeed, it opens up the question of what science is, that it is so different from other intellectual pursuits like backgammon, theology or literary criticism."
And the article regarding falsifiability of evolution was also a good read: http://www.talkorigins.org/faqs/evolphil/falsify.html. It appears that scientific theories do not have to be falsifiable to be scientific. Which still leaves me puzzled over what science is. The article is open-ended.
Arkady Grudzinsky 50+
Perhaps, it's better to say "functions", not "purposes". Language is quite important as we speak of evolution. It often creates an illusion that we imply volition in nature. Here is Darwin on this issue:
"Others have objected that the term selection implies conscious choice in the animals which become modified; and it has even been urged that, as plants have no volition, natural selection is not applicable to them! In the literal sense of the word, no doubt, natural selection is a misnomer; but who ever objected to chemists speaking of the elective affinities of the various elements?—and yet an acid cannot strictly be said to elect the base with which it will in preference combine. It has been said that I speak of natural selection as an active power or Deity; but who objects to an author speaking of the attraction of gravity as ruling the movements of the planets? Every one knows what is meant and is implied by such metaphorical expressions; and they are almost necessary for brevity. So again it is difficult to avoid personifying the word Nature; but I mean by Nature, only the aggregate action and product of many natural laws, and by laws the sequence of events as ascertained by us."
http://darwin-online.org.uk/content/frameset?viewtype=side&itemID=F385&pageseq=121
This is what causes my eyebrows raise in the phrase "our emotions are programmed by evolution."
Arkady Grudzinsky 50+
"Does the ability to cry have any advantages?" or "why should we have it?" also seems to be an irrelevant question to explain why we have it. We don't have everything we think we "should have" (e.g. it might be cool to have an RF sensor built into our brain) and we often have things that we shouldn't (cancer, for example).
From evolutionary standpoint, the only question that seems to makes sense is "can it lead to our extinction?" If the answer is "no", then there is no reason why we shouldn't have it.
Solaiman Akbar
crying moisturizes the eye. Ancient Earth was all water and oceans. Organisms with eyesight during ancient earth are used to the abundance of water around their eyes and entire bodies. When Land appeared and organisms had to deal with their loss of habitat by adapting to a dryer environment, i.e. Land. So tear glands may be an adaptation to keep vision healthy by keeping the eye as close to the moisture it was used to in Ancient Earth.
Solaiman Akbar
Crying or tearing is a common response to physical or/and emotional pain. When you something external acts on your body, it reacts. Physical pain: tears and crying are involuntary, so when you cry from pain, your body is going on defense mode, it wants to relieve the pain and wants it to go away. The chemical reactions in the brain that trigger crying might also reduce the pain as byproduct. However , crying's function may differ with stages in life. Infants for instance, cry when their body is in NEED of something i.e. food, diaper change, sleep >>> all for one thing, healthy upbringing, survival and to bring offspring. another stage in human's lives, lets say (2-7yrs old), you often see them cry more when they are denied something they want (candy) rather than physical pain. when they cry they range from cute convincing watery eyes to volatile annoying tantrums. Well I'd say they get their way 50-50, but thats not essential for survival as in infants. So why do they cry when they want something? I really don't know, but if I had to say, its the human's obsession with instant gratification. If you always get what you want, you are happy and you have a brain full of Dopamine(happy chemical), it could possibly also mean a healthier brain and body. Thirdly, eyes tear when dust or other foreign particles enter the eye. The tears gather all the foreign objects and mechanically by gravity leave your eye, and clearing your eyes from any risk of disease. I have no knowledge of how tears evolved from species to species. All this infromation I wrote might be completely false. I am only typing this from my head. kinda went with the flow of this website. whew... this is my first on this website, pretty inspiring..
Jim Ryan
Arkady Grudzinsky 50+
But what if crying is one of those numerous random mutations that have no advantages for survival whatsoever and, eventually, will disappear or just stay there because it does not lead to extinction either?
Jim Ryan
My question is, could eyes do without moisture constantly? I will do a little research on the next part and that is, do our tear ducts supply the constant moisture needed for our eyes.
That's something I never thought about before.
Have a good evening Arkady,
Jim
Ya made me think, thank you. :)
Mary M. 100+
If you've ever had something in your eyes.....like a lash or a small speck of something, your eyes well up with tears right away to get the foreign object out.
Could sadness be a foreign object in our mind's eye.......and therefore the brain creates tears to "let go" of this foreign object, that is, our sadness?
I personally have laughed so hard that I have cried. And I have seen others do so as well.
Arkady Grudzinsky 50+
Colleen Steen 500+
What you are suggesting seems very consistant with scientific research, which indicates that crying and laughing may be emotionally healing.Supposedly, based on what I have explored on this topic, the same kind of healing endorphins are released in the body/mind when we cry and/or laugh.
Arkady,
You ask...."But what's the function of emotional crying when there is nothing wrong with the eyes?"
It feels like a release.....it just FEELS good when it is needed. I don't think it's a matter of "evolving the ability to cry". I think it is simply a matter of allowing a natural process to happen.
Solaiman Akbar
Arkady Grudzinsky 50+
Re: "dont you think if tear glands and crying are random mutations, then how are tears present in all humans?"
Correct me if I'm wrong. It is my understanding that the theory of evolution considers that all biological advances started as random changes. Otherwise, you have to admit that life and evolutionary progress has a "purpose" which leads to creationism. Random mutations spread across species through reproduction. I'm not a biologist, though. I may be wrong.
Arkady Grudzinsky 50+
"My TED Story
I was scrolling around the appstore in my newly unlocked iphone, and I was like *tap*, and then thats it.."
This, in my view, is a very nice summary of how evolution and scientific discovery work :-).
Ben Jarvis 50+
Solaiman Akbar
It's fun to speculate :PPPP I actually just turned sophmore, biology is my niche
Wario H
1. Learn the art of letting go. Crying is perceived as the ultimate sign of breakdown and in the perception a lot of truth is held. Crying is an expression of an extreme emotion. It could be joy, laughter, pain or excitement. Crying describes the most inner and until we let ourselves cry it out we haven't reached the end of the emotion.
2. Crying reminds us we are human and we are not perfect. It reminds us that it is OK to fall or fail sometimes. In so doing we develop thick skin, we develop risk taking hearts. We stop being afraid of falling or failing and take on life with huge strides.
3. Crying stops the world from wanting to know you. Often, we find ourselves wanting to understand why abc is so thick/ hard and wont break, we pursue to understand underlying issues even when none exists. The moment they cry we sort of discover an aha moment our minds frame that they are human and so we stop trying to dig in them.
Ben Jarvis 50+
Ken brown 30+
Daniel Gero
Ken brown 30+
Colleen Steen 500+
Do you think/feel that the whole process of gathering, coming together, sharing jokes and stories sets the stage for people to be genuinely vulnerable to each other, which facilitates coming away from the event with something you may not have known about the other person? Do you think/feel that it may create a "safe" place to share the deepest feelings?
Elizabeth Gu 30+
You can just catch the moment of being sad or miserable.
Crying is like laughing although both seem contradictory.
I from time to time try to embrace the moment of crying—or sobbing.
It often helps me come up with words to describe my feelings uniquely and precisely when writing stuffs.
Or… it could be a good inspiration to you.
Just like drinking coffee, you can just taste what it is to cry and what it is to feel sad or extremely happy.
Crying is the most humanlike action.
Although we might not like the feeling of crying—it's bitter anyway, the action of crying plainly shows your vulnerability, and your inner-self constantly reminds you that this is also part of “you” whether you'd like to acknowledge that or not.
Thinking big, I know the ability to cry makes you realize so many things about your life and further, the world with a healthy dose of bitterness.
Daniel Gero
Daniel Gero
It's not all sadness and pain, sometimes it's just a release of overwhelming emotional responses to things such as joyous occasions, powerful music, inspiring speeches etc.. There's all kinds of things that make us well up, including exhibitions of extreme kindness and compassion by other beings.
Charles Curt
John Gianino
Charles Curt
Charles Curt
Colleen Steen 500+
We do not ALL feel "artificial pity" when someone is crying.....sorry you feel that way. And it is not just "weaker individuals" who cry.
Ken brown 30+
Even in this digital age, actually physically being there listening to the stories pulls you in. Our white kiwi's have adopted the funny story telling even if they have never been to one of ours, i have been to many a white friends gathering and have laughed til i cried, it's become cultural for them as well.
We sing a lot, whatever you may know, the song is usually the finisher for your talk, a stamping of your story. Sealed with a song. Sorry Colleen if i'm not making sense, i really don't know how else to explain it in English.
Colleen Steen 500+
I think many times when we know people really well, and have shared many of the same life adventures, talking is not really needed....there is an understanding that is felt on a very deep level.....I experience that feeling with some friends.
We have a similar practice at funerals here too....people in the audience are often invited to speak if they wish to. Somtimes people have written something down prior to the event, and sometimes not....it is a choice. I notice that often, however, a person who has written something down ignores it and just speaks from the heart in the moment. Sometimes, they are crying so much they cannot read the previously written words.
You make a LOT of sense Ken, and your telling of the experience in the way you do so well, causes me to feel like I am there.....thank you:>)
Daniel Gero
I also don't think it is a means of getting artificial pity, though some people may use it as manipulation for various reasons. If this were the case, why then would people choke back their tears? Why would they cry by themselves? Why would they be scared of being seen crying?
Mary M. 100+
However, tears may come at the most unexpected times due to deep deep sorrow.
It is not always a sign of weakness.
What is even more incredible is that holding back tears may even do you harm. Did you know that?
Attached is an article you might enjoy reading.
http://news.google.com/newspapers?nid=1755&dat=19840224&id=C7gdAAAAIBAJ&sjid=u2gEAAAAIBAJ&pg=6629,3363995
[EDITED: I was just wondering why you have suddenly decided to start writing without the use of proper grammar and proper punctuation...it makes it hard to read your comments....??]
Charles Curt
Colleen Steen 500+
"Artificial pity"? What??? "Required skills for females or weaker individuals"??? That is a myth that it is only females and weaker individuals who cry. I've seen some pretty strong men cry, and I believe it is a strength.
Casey Christofaris 10+
Mary Fink
Emily Wojtyna
William Seitz
Dogs have empathy link: http://www.psychologytoday.com/blog/canine-corner/201206/canine-empathy-your-dog-really-does-care-if-you-are-unhappy
Cat are evil link: http://www.cracked.com/article/226_6-adorable-cat-behaviors-with-shockingly-evil-explanations/
Science has pretty much spoken on cats versus dogs.
Smiling, laughing, crying have effects because an emotion is not an abstract thought in your mind, but exists as part of your entire mind-body state. Smiling can actually cause you to be happy because part of the emotion of happiness is smiling. Another example, is deep breathing to stop yourself from being angry. You adjust the physical part of the anger and that affects the anger. So part of the emotion is the physical experience of the emotion.
Botox link: http://www.webmd.com/healthy-beauty/news/20100623/botox-may-affect-ability-feel-emotions
So evolutionarily speaking I guess you could say that smiling, laughing, crying allow us to feel deeper and richer emotions, but I wanted to point out that the ability to understand and communicate these emotions is an advantage.
Colleen Steen 500+
You do not have to convince me. I've been "owned" by many dogs and cats throughout my lifetime. I have experience with their personalities:>)
William Seitz
Colleen Steen 500+
Smiling, laughing, crying all release healing endorphins in the mind/body.
http://longevity.about.com/od/lifelongbeauty/tp/smiling.htm
LOL! Dogs have empathy....cats are just plotting to eat us when we die!!! Thanks for the laugh:>)
Did you ever hear...
"Dogs have masters, cats have staff"
Colleen Steen 500+
http://psychcentral.com/blog/archives/2011/05/29/7-good-reasons-to-cry-the-healing-property-of-tears/
Charles Curt
Colleen Steen 500+
Other creatures DO cry. Ask a Mahout about elephants!
Charles Curt
reine des violettes
Colleen Steen 500+
Colleen Steen 500+
I've observed LOTS of ants and iguana, including the giant iguana in the Galapagos (fabulous experience BTW), and I've never observed them crying, so I don't know about those examples. It does appear that some animals DO cry, and I'm curious about why some do and some don't too!
I believe in evolution. How did you get the feeling that I don't think evolution is fact?
http://en.wikipedia.org/wiki/Emotion_in_animals