Health & Medicine

Cardiovascular Multimedia Information Network (CVMD) - Professional Podcast:

http://www.podcast.net/show/58606

Clinical Care Options Hepatitis - Audio Podcast:

http://www.podcast.net/show/57408

Health & Science - Sound Medicine WFYI:

http://www.npr.org/rss/podcast/podcast_detail.php?siteId=4819624

Exercise

Podrunner: Music mixes based on Beats-per-minute.

http://podrunner.com/intervals/P14/

Podrunner offers free weekly hour-long podcasts of fixed-tempo music (podrunner) or interval-tempo music (podrunner-interval). "Awarded 'Best Podcast' by iTunes two years running... produced by Los Angeles DJ Steve Boyett."