Warming up the intercostal muscles and diaphragm pathways enhances breathing efficiency before or during endurance activities, allowing for deeper breaths and increased oxygen delivery to the blood and muscles. This can be achieved by consciously practicing diaphragmatic breathing, which involves expanding the belly outwards while inhaling, as well as raising the chest to expand the intercostals. Even though conventional wisdom may discourage chest breathing, warming up these muscles is beneficial. Engaging in this practice for just a few minutes can motivate individuals, especially those who may feel unmotivated towards endurance training, as it boosts oxygen intake. This method aligns with the understanding that muscles and neurons require both glucose and oxygen to perform optimally, making it a logical warm-up strategy. Incorporating this breathing warm-up can be done while sitting, standing, walking, or biking.