Bellows

Bellows hadn't always trusted his own breath.

When he was small, he'd had a night where he couldn't seem to get enough air. His chest felt tight, his breaths came short and quick, and the more he noticed it the worse it got. Something's wrong with me, he'd thought, curling up. My breathing is broken. What if it just... stops?

His aunt had folded a wing over him — an old bat with a low, calm voice — and she hadn't told him to relax. She'd just laid her hand flat on his belly.

"Feel my hand there?" she said. "I want you to push it up. Just push my hand up with your belly, slow."

He tried. A big muscle low in his middle pulled down, made room, and air came in — a real, full breath. His aunt's hand rose.

"Now let it fall," she said. It fell. Another breath came.

"That muscle is called your diaphragm," she said quietly, into the dark. "It's a pump. It's been pumping air into you your whole life, even asleep, even when you forgot about it. It didn't break tonight. It just got scared and hurried, same as you." She let him feel a few more slow ones. "Nothing's wrong with the machine. We're only slowing it back down."

Bellows breathed against her hand until the tightness let go. The scared, short, can't-get-enough feeling had a shape now: it was just the pump running fast and frightened. Somehow, knowing that, he could sit with it.

He walked to Bioforge at twelve, because a place that studied the body ought to understand the part of it that never, ever stopped.

Doctor Marrow, the old mentor who ran the anatomy workshops, met him at the door. She didn't ask him to prove he was strong. She asked one thing. "What do your lungs actually do in there?"

Bellows didn't answer with a definition. He pulled a small pink model from his vest pocket — it looked like a tiny tree branch, hung with clusters of grape-shaped sacs — and held it up so she could see the little bunches.

"They trade," he said. "In here." He touched the tiny sacs. "These are alveoli. There are hundreds of millions of them, way too small to see. Air comes down and fills them, and the fresh part of the air — oxygen — slips straight through the thin wall into the blood, quiet as anything. And the used part the blood's carrying — carbon dioxide — slips back the other way, into the sacs, and gets breathed out." He mimed a soft whoosh. "Fresh in, used out. Millions of tiny trades, every breath, all day, all night."

Doctor Marrow looked at the little pink model for a long moment. "You belong here," she said.

Bellows's workshop was full of kids learning to trust the pump inside them.

A girl came in one afternoon, hunched and quiet. "I don't have big lungs," she said. "I'm not skinny like the fast runners. So I figured mine must be... small. Not as good."

Bellows set his model down. He knew that hunch.

"Put your hand here," he said, laying his own palm flat on his round belly. She copied it on hers. "Now breathe in, slow, and push your hand out."

She did. Her hand rose.

"Feel that muscle pulling down, making room?"

"Yeah."

"That's your diaphragm. It just filled you right up." He tilted his head at her. "Did that breath feel small?"

She thought. "...No. It felt normal. Big, even."

"Right. Because lung capacity isn't about body shape — not one bit. It doesn't care if you're round or lean or anything in between." He tapped his own soft, strong chest, unbothered. "My lungs work great. Yours work great. Skinny lungs, chunky lungs — there's no such thing. There's just alveoli, doing the trade, in every kind of body there is." He grinned. "You breathe about twelve to twenty times a minute right now, resting. Chase a ball and it'll climb. Same lungs either way. Yours are amazing exactly as they are."

She sat up a little straighter and took a breath — a real, full one, just to feel it.