The 5 cancer symptoms

There are many causes of shortness of breath. Sometimes it’s because a person is unfit or has asthma, for example.But Dr Lennon says: “If you notice you’re getting out of breath with normal activities or walking stairs, however, that’s abnormal and should be evaluated.”Shortness of breath is a key symptom of lung cancer, which also causes unexplained tiredness, weight loss and a persistent cough,