Have a baby.

My stomach muscles never recovered (they split), I have postpartum endometriosis (my abdominal cavity is riddled with endo and adhesions) and I had postpartum depression that never truly resolved itself.

Nicotine has to be at the top.

Being too sedentary. Stay active, people!

I did a weird psychedelic research chemical and gave myself HPPD. Still have symptoms over 6 months later with no drug use. I'll probably suffer from visual disturbances for the rest of my life.

Got fat, and it's seemingly impossible to go back. 80 something kilos at 174cm

Work and tobacco. Both have been said but it's worth repeating. Awful stuff, steer clear of them. In fact I still do it to my body, quit tobacco for three years but went back a few months ago, not completely unrelated to work-induced stress I would argue. Also getting closer to forty physical work gets more and more punishing, compounding on all the past mistreatment.

Mag dumped a .45 in an indoor shooting range with no hearing protection on.

Didn't look after my posture, now my neck is fucked and it causes pain all down my arm and my finger is numb...

Sugar.

I didn't get diagnosed with bipolar disorder until later in life. My lumbar spine is riddled with disc ruptures from physically overextending myself to the point of collapse during manic periods.

it isn't so bad on the day to day but i can't sit at bar stools without lumbar support or upright in the bed/on the ground for more than about 5 minutes without pain. No bicycles or lifting anything much.

If i could do it over i would know my human limits!!!

Drugs, alcohol, fast food, and - worst of all - slouching. :-(

I used to work 12 hours night shifts. When I had the opportunity to set my own schedule I chained 12 hours night shift PLUS 12 hours day shift so I can have a lot of free time later. So, 24 hours of work, 24 hours without sleep. It was a low intensity IT work in a data center, but still, not good for your body.

While I fixed my diet that resulted in severe GERD, and the symptoms are lessened, I still have more pain throughout the week than not a year later. I have a family doctor, I just don't respond to gut drugs even after eating properly and drinking only water or fake milk unsweetened Almond/Coconut like a saint.

Not sure if regret is the right word when I don't consider myself very responsible for beginning my poor habits in the depths of brutal depression spells however. Never really "good" either, so hard to quit once I start something. I eat better purely motivated by the pain becoming constant.

Possible future regret is if I get cancer that's linked to smoking cigarettes or vaping. I don't smoke much, limited to twice a day for the past ten years, but combining some smoke inhalation with near constant THC vaping is probably a pretty bad combo. I don't truly want to quit either of them at the moment, so...yeah.

Stupidly spammed Harden stepbacks at a pick up game 3 years ago and now my right knee isn’t the same. Swells up after just a few runs, and takes a week to recover.

Working in the trades for a short 6 years has fucked my hand grip strength. In the past couple years since leaving the trades, I've noticed how painful it is to work with tools for a long period of time.

I wanted to take up widdling as a creative hobby but after 30 minutes, my hands are aching and stiff for a couple days afterwards.

A lot of the stuff I worked on was metal related and that's not kind to anyones body. I knew a sheet metal worker who would have retired with really bad carpal tunnel and that should have been a huge red flag early on in my working life. I'm glad I got out before any major long lasting pain set in.

Not listening to my body telling me I’m getting older. That I need to slow down, stretch, find time to repair.

Didn’t listen last year and got a repetitive stress injury surfing.. did several months of physical therapy. Stamina is about 50% what it used to be, and it’s hard to paddle into waves with 50% stamina.

Poor body mechanics when moving things. Really quick way to fuck up your back.

About two years ago I developed a hiatal hernia that has wreaked absolute hell on my body and my mind. It has been messing with my vagus nerve giving me all kinds of digestional problems. The GI I saw did not take me seriously, told me to change my diet and lose weight. Well gee, thanks for that astute observation, asshole. I guess spending several years giving myself the actual hell of losing weight somehow medically supercedes the feeling of an impending heart attack every single day. To be very clear, I saw a cardiologist who checked me out and said my heart is in very good condition, though I should continue to exercise to strengthen it. This doesn't change the fact that I have experienced an extensive trauma from the entire ordeal.