Harley!! has!! So!! Many!! Health!! Problem!!
based on the fact that,, fuck you I wanna write about Harley’s health problems.
okay so, first thing first? Harley’s? Going deaf. When he was younger, it was classified as mild hearing loss that he was born with, but a he grew older it slowly grew more severe. They don’t exactly know why, but they think a part of the reason is that he works in a lab with loud bangs and noses without ear protection. But they dont know why he was born with mild hearing loss. He builds himself special hearing aids at sixteen, that weigh almost nothing, and cost even less. He gets them patented by SI and essentially helps millions of people all over the world get more affordable and efficient hearing aids.
he was also and extremely sickly kid until he was like.. nine. then he only got sick every once and awhile. But because he was so like.. sickly and sick, he had to stay home a lot, which led to reading a lot, which lead to wanting to do the things he read, and let me just say, he read a car manual once and managed to pry open the front hood of his car. so he was sitting there with strep throat and learning the parts of a car by the time he was three. His mom used to be a stay at home mom, so when he didnt understand, he’d climb into her lap and point to a word and ask. When he was a kid, it was like,,, strep every few weeks and an occasional stomach bug, but as he grows older its less frequent but when he does get sick its a little more severe.
and now for his heart problems: he was born with two conginital heart defects, but one was discovered when he was born, and fixed up. The one that was discovered was leaky/weak valves (atrial septal defect), meaning that blood flow wasn’t doing the thing it should. That was fixed. But they missed a very small hole in his heart that steadily grew as he grew- and got progressively worse as he grew older due to stress and the ammount of caffine he intakes. By the time they found it and fixed it, it had a lasting affect on both his health and his heart, making it pretty weak and making it have developed and irregular heart beat. He gets a pacemaker at age seventeen and thats? kinda it. He has to avoid caffeine point blank, and not get into anything too stressful, but yeah.
It doesn’t really affect his super heroing, and he actually uses a mini arc reactor to power his pacemaker. But- it does lead to all of his friends and family being pretty against him being a super hero. He doesnt listen, but he does take it easier than Peter “im-gonna-throw-myself-into-danger” Parker.