When we talk about working your chest muscles, there are three separate sections you can focus on; upper, mid, and lower.
Your chest muscles start right below the collarbone. There is a thin clavicular head of the major pectoralis that extends to your shoulders. If someone says pecs, they refer to the sternal head of the largest muscle which makes up the most on your chest.
Lower chest muscles provide the pectorals with a well-rounded, defined, and visually appealing look. Unworked lower chest won’t reflect the aesthetics and shape you wish to have.
There are no heads associated with the lower pecs, but it doesn’t mean you shouldn’t target the lower chest. Working on the lower chest will complete the development of the pectoral.
Here are some of the most fundamental lower chest exercises you need to add to your workout regime ASAP.