Roller coasters cause some to scream, some to thrill

Posted | Contributed by OhioStater

As the summer winds down, Canadians in some parts of the country are preparing for a last hurrah: a thrilling roller coaster ride at the Canadian National Exhibition in Toronto or the Pacific National Exhibition in Vancouver, both of which open this weekend. But what is it about hurtling down a rickety track at speeds upwards of 100 km/h that is so appealing to some and so absolutely terrifying to others?

Read more from The CBC.