What role does oxygen play in human body

Oxygen is essential for the body to function properly. It is used by cells throughout the body to produce energy, and without enough oxygen, our bodies cannot function at their best. Oxygen is especially important for physical activity because it is used by the body to fuel the muscles. When we engage in physical activity, our muscles need more oxygen to support the increased demands being placed on them. This is why we often breathe more heavily during exercise – our bodies are trying to get more oxygen to our muscles.

Without enough oxygen, our muscles cannot perform at their best. This can lead to fatigue, shortness of breath, and a decreased ability to perform physical activities. In extreme cases, a lack of oxygen can even be life-threatening. For example, if we are engaging in strenuous physical activity at high altitudes, where the air contains less oxygen, we may experience altitude sickness, which can be dangerous if not treated promptly.

Overall, oxygen plays a crucial role in supporting physical activity. By breathing in enough oxygen, our bodies are able to meet the increased demands placed on them during exercise, allowing us to perform at our best.