“The most common form of giantism is a condition called acromegaly, and acromegaly is caused by a benign tumor on your pituitary gland that causes an overproduction of human growth hormone. And throughout history, many of the most famous giants have all had acromegaly.”

British-Canadian journalist, author, and public speaker

Malcolm Gladwell is a British-Canadian journalist, author, and public speaker. He has been a staff writer for The New Yorker since 1996, and he is known for books that bring ideas from social science, business, and culture to a wide general audience. He has published eight books. He also hosts the podcast Revisionist History and co-founded Pushkin Industries, a podcast company. His work often looks at why people and institutions think and behave as they do.