The answer is - Our brain is wired to get instant gratification and it releases dopamine with constant gratification. That's why Social Media is very addictive.
I have written an article on Medium on how you can redirect your Social Media sites like Instagram, Facebook, Netflix, or any other site on which you are addicted, even Reddit :-) to something very simple which helps you bring your focus back to work or let's say help you Meditate.
Article Link - https://requestly.medium.com/overcome-your-muscle-memory-to-stay-calm-productive-fce5ffdf1f8f
Here are the steps
1. Install Requestly from Chrome Store - https://chrome.google.com/webstore/detail/requestly-redirect-url-mo/mdnleldcmiljblolnjhpnblkcekpdkpa/
2. Open https://app.requestly.io/rules/#sharedList/1607487126556-Redirect-Social-Media-Sites-to-Stay-Productive-And-Calm (This link won't work if you don't have Requestly Installed)
3. Click Import List
Cheers! Stay Focussed & Stay Calm