ānāpānasati

The first foundation of mindfulness is contemplation of the body (kayanupassana). When you learn to listen to your bodies and stay with sensations, you can become more grounded and less reactive. Contemplation of the body helps you make friends with your body, and accept the fact that this body is not "your" body, but rather just a temporary form. A large body of scientific research suggests that simply paying attention to your body helps ward off disease, improves cognitive and emotional functioning, and much more. However, simply staying present with the sensations in your body is as simple as it is challenging.