Let out a Sigh
A great way to refresh your mind is through sighing. You may feel overwhelmed with the amount of things you have going on, and that's okay! Let out a sigh, and start fresh. It also means that you are inhaling, which brings in oxygen to your brain to ease the strain of having frequent headaches.
- When breathing in one state for too long, the lungs become stiffer and less efficient in gas exchange
- Adding a sigh to the normal pattern allows the lung's air sacs to stretch and may give one a sense of relief
http://mentalfloss.com/article/75330/frequent-sighing-helps-keep-you-alive
http://www.normalbreathing.com/d/sighing.php
http://lifehacker.com/5994367/why-sighing-makes-you-feel-better