Are you an Google AdSense publisher? Then it is really a very good idea to ad ad units inside post to get more clicks. According to social media expert report it shows that content ads get the best click through ratio (CTR). So you should take the advantage to increase your CTR by adding ads within your post content. In WordPress you can easily add Adsense ad units inside WordPress post by using Insert Post Ads plugin. It allows to insert ads after paragraphs of your post content.
First of all get the plugin and install it. After installation you will see new plugin Post Adverts, go to add new to add an unit:
Select the settings you like, i.e where you would like to show your ads:
Here is the output ad units after 1 paragraph: