How many friends do you have on Facebook? The answer may have more to do with your brain's health than just your social status. A study published in the journal Proceedings of the Royal Society B has found a strong link between the number of Facebook friends someone has and how much gray matter they have in particular areas of their brains. Gray matter is a type of neural tissue which is found in the brain and spinal cord, and is many times correlated with intelligence.
While researchers aren't sure exactly why people with lots of Facebook friends have more gray matter, they do note that the study shows an association and not a cause-and-effect relationship. So, they're not sure if Facebook helps increase gray matter, or if people with gray matter tend to just naturally have more Facebook friends.
Jennipher Walters is the CEO and co-founder of the healthy living websites FitBottomedGirls.com and FitBottomedMamas.com. A certified personal trainer, lifestyle and weight management coach and group exercise instructor, she also holds an MA in health journalism and regularly writes about all things fitness and wellness for various online publications.