Athletes can rest easy: Extreme exercise does not raise heart disease risk or mortality, study shows Date: January 30, 2019 Source: UT Southwestern Medical Center Summary: High volumes of exercise are safe, even when coronary calcium levels are high, new research suggests. Share: Materials provided by UT Southwestern Medical Center. Note: Content may be edited for style and length. Journal Reference: Laura F. DeFina, Nina B. Radford, Carolyn E. Barlow, Benjamin L. Willis, David Leonard, William L. Haskell, Stephen W. Farrell, Andjelka Pavlovic, Katelyn Abel, Jarett D. Berry, Amit Khera, Benjamin D. Levine. Association of All-Cause and Cardiovascular Mortality With High Levels of Physical Activity and Concurrent Coronary Artery Calcification. JAMA Cardiology, 2019; DOI: 10.1001/jamacardio.2018.4628 Cite This Page: MLA APA Chicago UT Southwestern Medical Center. "Athletes can rest easy: Extreme exercise does not raise heart disease risk or mortality, study shows." ScienceDaily. ScienceDaily, 30 January 2019. <www.sciencedaily.com/releases/2019/01/190130175607.htm>.