Shortness of breath, also known as dyspnea, is a feeling of not being able to get enough air. It can happen during physical activities, like climbing stairs, or even when resting. People may describe it as feeling tightness in the chest or a sense of suffocation. This condition can be caused by various factors, including asthma, allergies, or heart problems. If someone experiences shortness of breath frequently, it’s important to seek medical advice. Doctors can help identify the underlying cause and recommend treatments. In some cases, simple lifestyle changes, such as quitting smoking or exercising regularly, can improve breathing and overall health.