Definition
The "armpit," also known as the axilla, is the area under your arm where your arm connects to your shoulder. It's a small, often sweaty and sometimes hairy area. Unlike other parts of your arm, the armpit contains lymph nodes, which are important for your immune system. Think of it as a little junction box under your arm 📦. It's also a common place to apply deodorant to control body odor. It can be ticklish for some people. 🤭