It doesn't just include exercising and dieting, but multiple other factors as well. (toginet.com)
There is not space here to discuss optimum strength training frequency and volume for improving COD ability, and it will necessarily be affected by multiple other factors including (1) sport, (2) training status, (3) amount of other training, and (4) season. (strengthandconditioningresearch.com)
To control for multiple other factors that can affect motor vehicle crash rates, such as traffic safety programs, weather and economic conditions, the researchers compared the number of alcohol - related fatal crashes in Illinois with those unrelated to alcohol during the same time period as well as alcohol - related fatal crashes in Wisconsin, which did not change its alcohol taxes. (sciencedaily.com)