Block Ad in the Header

Hi Guys,

I am using Google Adsense Ads on my site which places Ads Automatically in my site. I am fine with using this. I just do not want Google Adsense to place Ads in my header and rest is fine.

I understand you may suggest me to use Ad Inserter but i do not want to manage the ads manually. Just want to block it in the header location as its breaking the header of my site.

Is there any way to not have Adsense Ad displayed in Header on my site using a PHP or custom CSS?