Talking is an art and hosting a podcast is an extension of that art. To make an effective podcast there are some things that you should remember when recording.
One of the most common pitfalls of beginner podcasters is talking too quickly. You should watch how you pace your talk when you do your podcast. Talking at a fast pace usually happens when you’ve done a run through of your material a few times. The familiarity with what you’re going to say may result in you trying to “breeze” through the whole show. Slow down. Give yourself the opportunity to actually take a breath and check how fast you’re going.
You will also have a tendency to speed up when you are tense. The whole podcasting setup with the microphone, headphones and hearing yourself talk is quite a strange experience that not everyone will be immediately used to. Try to do relaxation exercises before recording. Avoid caffeine which can make you more tense. You will also usually get tense when you put such high expectations on your performance. Remember that practice makes perfect and it is the rare person who takes to podcasting like duck to water. Take comfort in the fact that there is also a learning curve here and that you will continually improve as long as you take note of what aspects you should improve on.