Top Countries For Brain Age: Train Your Brain in Minutes a Day! With The Most Controversial Videos Review Videos

This list represents countries of YouTube review videos by content creators for Brain Age: Train Your Brain in Minutes a Day! based on the lowest rating (dislikes minus likes) on their videos; in other words, the most controversial videos. This only includes review videos. A channel associated with a country will have its numbers added to their country's total. Numbers are retrieved via the YouTube API and updated daily.