According to a 2008 study by the Gulhane Military Medical Academy the use of CoQ10 for patients undergoing heart related surgery can help aid in recovery, reduce need for certain medications and reduce the length of hospital stays. CoQ10 functions as an antioxidant, protecting cells against the effects of free radicals, which damage cells, and may play a role in heart disease and other diseases. CoQ10 is also an important co-factor in energy production, which helps with myocardial (heart) contraction.