It’s important to remember that, if you run out of breath, become dizzy or nauseous, it means you are not taking in enough oxygen for the speed you are running. Generally speaking, this means you must either adjust your speed, or the amount of air you take into your lungs. The tips below keep those two strategies in mind.
7 Key Breathing Tips

1. Try slowing down before attempting to change your breathing.
2. Focus on longer, deeper breaths.
3. Breath more from your diaphragm (belly) than your chest (chest breathing is more shallow).
4. Focus on exhaling more fully. This will remove more CO2 (Carbon Dioxide) and allow for deeper inhalations of O2 (Oxygen).
5. Allow air to enter through both the nose and mouth. This will allow for maximum O2 intake.
6. Aim to take three footsteps for every inhale, and two footsteps for every exhale (3:2 ratio).
7.One last thing – try not to over-think your breathing! It’s best to try to slow down, relax, and let yourself fall into your body’s natural rhythm.