Can you prevent ADHD?

Most disorders can't really be avoided, but there are ways to improve the symptoms. To start with, figure out the things making it worse. Social media can affect our focus because multitasking and switching from website to website can make it more difficult to focus. Other things can be distracting like your cellphone or things going on in your life that you're worried about. If there are things that are worrying you, address those first. Do your best to change what you can, and don't worry about things you have no control over, since you can't make it any better. Next, figure out what helps you to focus and calm down. Deep breathing is always great. Grounding as well (taking in your surroundings, using your senses, see your environment, listen to it, touch something close by, smell the air). Classical music is also known to help. Oh cool tip that's proven is to look at cute animals before doing a task. (Just google image baby animals! ^-^) Let people around you know when you need to focus if you need to. Focus on one thing at a time. Don't try to do this paper and that paper at the same time. Do things one at a time and at your own pace. Take care of other things that might keep you from focusing like making that phone call or taking the dog out first. Make sure your desk space/environment is as neat and clean as possible, because while a messy environment may help creativity, it makes it more difficult to focus. And most of all, don't stress about how slow your pace may have to be. Accept what you have, and work on improving things. As long as you're doing your best and taking the self-care breaks you need, you are performing to your best potential, which is good enough :)

We don't have any idea how. What we know is that ADHD is highly genetic. The only thing you're more likely to inherit from your parents is your height! Right after that, at 79%, it's your ADHD. But, genes don't mean that anything is set in stone. Your genes are the gun, any they need some environmental factor to pull the trigger. The word environmental can mean anything from what we consider the "environment" like smog or what your mom ate when she was pregnant, things like that, but they can also just mean things like how much dopamine or estrogen your mom produced when she was pregnant. Things that can't be controlled at all. So, I guess the big summary is: Who knows? Science is still trying to figure it out!

ADHD is a specific neurological deficit associated with several abnormalities in the brain, structurally as well as chemically. Several structures in the brain underperform, or simply do not perform. ADHD is a developmental disorder, for the 3-5% of the population who have it, they are delayed in developing, by about 1/3. It has a genetic component, but we cannot say it is entirely genetic in origin, we have cases of acquired ADHD, in individuals who suffer Prefrontal lobe damage. Source: Dr Russel Barkley

You can manage it, but completely controlling it is difficult, I won't recommend medication, but finding things to keep me busy help

This is a highly debated topic. Many people see this as a habit, while others see it as genetic. I would say that you should look into it based on what you think and go from there.

Unfortunately, I don't think that is possible. Having ADHD is like having brown eyes, except it affects you when your eye color might not. The only thing that you can do is try to manage it and learn coping skills to ensure that your symptoms don't disrupt your life. You can use medication (prescribed by a psychiatrist), meditation, or other coping skills. You can try to be aware of when your symptoms are the worst and anticipate that. For me, when I have to write detailed papers for my degree or sit in long meetings I know I need to take my medication to get through it and stay focused. Other times, at work, I keep myself occupied by doodling or writing lists.