This is a big part of it. Most cancer treatment is literally "we're going to get as absolutely close to killing you as we can, and then stop at the last second,

This is a big part of it. Most cancer treatment is literally "we're going to get as absolutely close to killing you as we can, and then stop at the last second, over and over and over again, and hopefully get you into remission." You can't do that and then turn around take drugs that mess with your hormones and expect everything to be totally fine without even a single conversation with a physician.