Because as you advance and bald the head on your top is more susceptible to dht related thinning and loss
While the hair on your side is much more dht resistant, and remains fuller and course.
Proper planning, mapping and a course of finasteride will in most cases completely halt the loss. Rhis is the only way to maintain a natural look. If you take steroids and dont take an androgen inhabitor, eventually your genetics will override and you will have a plug look pr unusuall pattern where the front is filled in and sparse areas all over. Which is why it's not recommended to get a transplant when your loss is minimal like a nw2. A transplant cannot mimic a natural thick hair and it will result in a cobweb like appearance with a thick surroundings. Typically why a lot of people need am additional top up.
With the right surgeon, you can map a natural loss over time with or without medication.
I have had 3 hair transplants. The first one was not enough and my hair looked like shit. After the second or looked natural and full.
It takes a lot of time and money to be invested onto achieving a natural look. If you think one transplant will achieve your result you are in for a joke. It's a long emotional rollercoaster ride and most people who undergo this shit are very insecure. I am not shy to admit, but it takes a certain person to undergo this surgery. Ifs very time consuming and invasive recovery wise. But in the long run I am so glad I had it done.
Hair is more important then muscle the older you get. Women generally dont care about anything more then being relatively fit. Anything more, you're only impressing your boyfriend. Made me realise how pointless steroids were after I spent 4 half year blasting and cruising. Enjoy your natural muscle foundation you.built and hair, it's way better then pinning and living behind a syringe. And yes you have an addiction despite the people who believe they are totally okay.