Modifying spacing between paragraphs, but not before the first paragraph, in beamer

Question

Consider the following beamer code:

\documentclass{beamer}
\mode<presentation>
\usecolortheme{crane}
\begin{document}
\begin{frame}{}

Paragraph 1

Paragraph 2

\begin{block}{Block title}
    Paragraph 3

    Paragraph 4
\end{block}

\end{frame}
\end{document}

This gets typeset like this:

I would, however, like to have some vertical spacing between "Paragraph 1" and "Paragraph 2", and between "Paragraph 3" and "Paragraph 4". In other words, I would like the document to look like this:

I'm wondering whether there is a way to automate spacing so that I don't have to keep adding \vspace between paragraphs manually. In other words, I would like to make some global changes so that spacing gets added before every paragraph apart from the first.

Changing \parskip globally does not work because the space is added before each paragraph, Including "Paragraph 3" and "Block title" -- the output of that looks like this:

EDIT: I know how to add the space manually, but that can be a bit annoying. I am wondering whether one can automate these things somehow.

Answer 1

You can always force some space between paragraphs with \smallskip, \medskip and \bigskip.

\documentclass{beamer}
\usetheme{Berkeley}
\begin{document}
\begin{frame}{title}
Paragraph1

\smallskip
Paragraph2
\begin{block}{This is a block}
Paragraph3

\medskip
Paragraph4
\end{block}
Pargraph5

\bigskip
Pargraph6

\end{frame}
\end{document}