Overcast skies, misty rain and cool temperatures did not dampen the spirits of the 9,000 walkers who descended on Vanderbilt’s campus for the American Heart Association’s 2015 Greater Nashville Heart Walk, which was held Saturday, Oct. 3. Walkers from 150 teams participated in the event. While the numbers are still being tallied, early reports indicate that more than $1.9 million was raised in Nashville.