A healthy comfortable posture. Sometimes we are required to stay prone or sitting for a long breadth of time. It can be outside or in an office building but either way you can make a difference. Check your posture: are you slumping without support and gathering tension in your lower back ? Is one leg pressed to the other or over the other and blocking the flow of blood and oxygen to your tissue ? is your head held in a way to tense up the shoulders. Did you raise your shoulders without noticing from other mental tasks that do not come from you ? Did you do something good that is new and you would like to keep doing it with awareness ? Even sitting down can make you healthier. You only have this moment.