Exception handeling closes my program

Brand new to C++

cout << "Hello World!" << endl;

int x = 0;

cout << "Enter your favorite number: ";

	
try
{
    cin >> x;
}
catch (int e)
{
    cout << "Hey dummy, enter a number!" << endl;
}

cout << x << "? That's a pretty small number. \nI bet that's the highest you can count." << endl;

string mystring;

// Made possible by <string>
cout << "Tell us your name: ";
getline (cin, mystring);
cout << "Hello " << mystring << endl;

If I delete the following code my program runs fine. So what's wrong with my try/catch statement?

try
{
    cin >> x;
}
catch (int e)
{
    cout << "Hey dummy, enter a number!" << endl;
}

-Nothing to see. Move along.