<span> he came to demonstrate the working of a process that was clearly psychological which caused a change in the digestive system.
This finding lead to the discovery on how a change in organisms' psychological condition could influence our normal biological function, such as tendency to become constipated when we're stress, increased response when we're anxious,etc.</span>
This is false.
The UN also uses other means, such as resolutions (it is a reminder to the party that does the abuse that they are being watched) and humanitarian help to back the Declaration of human rights.
On the other hand, they also use troops and embargoes to settle conflicts, and to provide security in the region. This has to do with human rights, but only indirectly.
A Visa is a document that always a traveler to stay in a country for a specific period of time
Did you read a article with that question?