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I get winded walking to the mailbox. It’s not a long walk. It’s maybe fifty feet from my front door, down a slight slope, and back. But by the time I get back to my porch and up the two steps, I’m breathing heavily, gasping for air like I’ve just run a sprint. It’s not the distance; it’s the heaviness in my chest, a tightness that feels like an elephant is sitting on my lungs. For the longest time, I told myself I was just out of shape. I'm 62, after all. I thought my sedentary job and a few extra pounds were catching up to me. So, I decided to do something about it. I started walking on the treadmill in our basement every morning. I set it to a slow, steady pace and told myself I'd build up my endurance. I lasted five minutes the first day. I had to stop, clutching the handrails, my heart pounding in my ears, completely unable to catch my breath. I wasn't sweating. I was just… winded. Defeated. I went to my doctor. I explained the symptom. I told him I wasn't having chest pain, just this profound shortness of breath with minimal exertion. He listened to my lungs, which sounded clear. He checked my oxygen saturation, which was normal. He looked at my chart and said it was probably normal for my age. "Just try to exercise more," he said, scribbling a note. "And try to lose a little weight. That will help." So I did. I redoubled my efforts. I tried to lose weight, cutting calories and counting every bite. I tried to exercise more, forcing myself onto that hated treadmill every day. But the breathlessness didn't get better. In fact, it felt like it was getting worse. I started getting winded just walking up the stairs in my own house. I'd have to stop halfway, lean against the wall, and pretend I was just admiring a picture while I secretly gasped for air. I was scared. I went looking for what makes you get winded walking short distances, especially when you're not overweight and your lungs sound clear. What I found was terrifying. It was a study in the Journal of
