What are your thoughts on pathogenic causes? The reasoning I&#x27;ve read is that genetic causes would have been eliminated by natural selection.<p>I&#x27;ve read that poorly timed infections can mess up the immune system, like getting mono as a teen, which then does long term slow acting damage to the brain.<p>I&#x27;ve also read speculation that maybe than an ancient pathogen was subsumed (?) by our cells and our DNA repair mechanisms are in a constant state of war keeping it at bay, maintaining the balance, which can also be knocked out of whack by an early infection.<p>My interest is that someone close to me is afflicted. I&#x27;m a complete plebe on this stuff. And without the proper background, my comprehension is low (ELI5). And I very much would like to know how to best help, care for my loved ones.