If you're curious about your heart rate here's a link that will help you out
http://www.heart.org/HEARTORG/GettingHealthy/PhysicalActivity/Target-Heart Rates_UCM_434341_Article.jsp?gclid=CLXrhPuI_rsCFTEV7AodQV0A7w
http://www.heart.org/HEARTORG/GettingHealthy/PhysicalActivity/Target-Heart Rates_UCM_434341_Article.jsp?gclid=CLXrhPuI_rsCFTEV7AodQV0A7w