Recurrence/repeat workflow for sending recurrence reminder

Hi All Hope somebody can give me hints or ideas regarding this
With the wait action, can I create a recurrence workflow? Something like repeat itself every 1 month/ 1 week or some other frequencies?
Case life example like Birthday Email. If I want for each contact to be sent automatically a birthday greeting on their birthday every year, could this be done with wait action or there is another way?

Thanks
Ferdinand