Do you have Facbook envy? 

A study conducted by two German universities found that one in three people felt worse after visiting the social media site, which has "1 billion users and has produced an unprecedented platform for social comparison," according to the Chicago Tribune.

The Chicago Tribune reports vacation photos spurred the biggest cause for jealousy on Facebook while social interaction, which lead to users comparing how many likes a post or photo would get compared to other Facebook friends, was second.

Some have chosen to stop using the social media site or limit their use due to the envious feelings, according to the Tribune.