How to add a WordPress Nonce for this form to avoid CSRF

Question

Here is the Form and I would like to add a WordPress nonce to it:

          <form action="" method="post">
            <label>Enter your email address:</label> <input id="email" type="email" name="yourmail" value="<?php echo $current_user->user_email; ?>" disabled="disabled">
            <input type="submit" name="submit" value="Test">
          </form>

Answer 1

Here is a Reference to a form field WP Nonce

<form method="post">
   <!-- some inputs here ... -->
   <?php wp_nonce_field( 'name_of_my_action', 'name_of_nonce_field' ); ?>
</form>