While a high fitness level is already known to have a positive impact on conditions like heart disease a new study suggests that adults who are more fit have the lowest risk of developing lung and colorectal cancer compared with those who have low fitness levels. For the study the research team examined 49143 adults who underwent exercise stress testing from 1991-2009 and followed them for a median of 7.7 years. Those in the highest fitness category had a 77 per cent decreased risk of developing lung cancer and 61 per cent decreased risk of developing colorectal cancer the results
