Realizing the ways in which we humans may have been inadvertently changing our genes for millennia provides a way for us to begin to think about the …

- Nicholas A. Christakis

I like to have met someone in real life before being their Facebook friend.

- Nicholas A. Christakis

What constrains or enables the capacity of human beings to work in groups is not so much the technology, but rather the capacity of the human brain t…

- Nicholas A. Christakis

It used to be thought that our genes were historically immutable and that it was not possible to imagine a conversation between culture and genetics.

- Nicholas A. Christakis

People have just assumed that... if we call our Facebook acquaintances our friends, we must be influenced by them, too. But we're not.

- Nicholas A. Christakis

There are very fundamental reasons we live our lives in social networks and if we really understood the role they're playing in our society we would …

- Nicholas A. Christakis

It is well to look around at whom, and not just what, surrounds us. Population structure will change everything. Our health, wealth, and peace depend…

- Nicholas A. Christakis

Social media and the Internet haven't changed our capacity for social interaction any more than the Internet has changed our ability to be in love or…

- Nicholas A. Christakis

Everyday interactions we have with other people are definitely contagious, in terms of happiness.

- Nicholas A. Christakis