Why do people lose their abilities of reasoning and stayingcalm when in crowds?

That depends which theory of crowd psychology you believe. Freud believed that a crowd sort of "merges" the consciousness of everyone in it, forming a melting-pot of the people and reducing their individualism for a variety of reasons (stuff like wanting to be like other people and so on). Jung believed in a collective unconscious, which affected his theory differently. Le Bon believed in a "madding crowd", wherein people had anonymity and could therefore be more extreme and emotional. There's also convergence theory, which works the other way round - that people of similar ideas want to be in groups and thus form them. Personally, I lean towards Freud and Le Bon here: groups give people a false anonymity and their desire to be "one of the gang" and "like everyone else" reduces their individual sense of propriety (or whatever you want to call "acting normal"). This, in turn, allows the leaders (or a dramatic act) in a group to spark emotions and, well, lead the group in whatever direction they wish, violent or not.

Hi Awinds! With more people they tend to be more brave and not afraid to say anything they want. They say the size of the group determine the amount of support available..If more people who oppose or support it can help change a decision which has been made. Although a lot of rioting caused their voices heard is not the answer to pressing a matter for negotiation with a small amount represents a large number is better than rioting and damaging public property. I don't agree with or unlawful assembly as it tend to bring more harm than good. Damages greater than the profits made and more time consuming to recover it.

Personally it can be quite amazing. Sometimes even in smaller groups you will see people start acting like this and wanting to throw things just because they do not agree. Especially when it comes to something Political or Religious. It often is quite amazing and it makes you wonder. I feel that sometimes they just want to make sure they are heard even when no one is listening especially when no one else seems to agree.

I think that some want to be excepted and feel they have to agree with the crowd to do that. They are afraid of any confrontation so they conform. Or they are all on the verge of an angry explotion at the slight provication due to stress or other things. And once a bunch of people are mad it is hard to calm them down.

Hi.. Well it needs a lot of patience to have control on ourselves when such riot,depressing and frustrated situation arises, I totally agree with you that in large crowds two people tend to screw eachother more, the only reason behind this is gossiping, giving false testimony about others, this gives a lot of negative emotions about each other, as in a big group this can also happen in small group they just want to see fun of each other, so be it I a big group or a small group the risk of breaking of two person is equal. So I personally think that in a bigger group or in a smaller one. It matters is the same. Its just the influences and negative thoughts of eachothers.

I think that some people can get easily panicked whrn they are among a crowd. You can quickly lose focus and your imagination can get the best of you. taking a deep breath can restore some of the calmness and reasoning to your life. Keeping a cool head is a wise choice when faced with a crowd of many.

Because angry people wants to get attention from the crowd and he/she wants all crowds to agree with him which does not happen and that sparks more misunderstanding and more unpleasant attitude..

For me it is because the influence of bad is very good for today life you know what Satan is the ruler of this system.

Emotions are very precious, we have to use our anger rarely, then only it will be valued. I agree with you.

I think it is because some people have tendencies to lead other people on... making many situations much worse than what they could have been... this is just my opinion though... hope it answers your question