Dr. Petra Davelaar's checklist for optimizing fertility Dr. Petra Davelaar: "The first thing we have to address light. You have to watch the sunrise every morning, and this will help establish all of the right hormonal issues that may be going on in either one of the couple. […] "Become acutely aware of the light you are under the whole day, every day, and address that. Replace all the light bulbs, get rid of the LEDs, CFLs, and change all of that. […] "Ditch your sunglasses. No sunscreen. […] You have to rebuild your melanin and your dopamine pathways, crucial pieces. And we can only do that with sunlight. We have to be out there as much as possible. […] "Become really aware of all of your electromagnetic radiation that you are exposed to. Manage your tech. Understand that we should not use these laptops without an Ethernet cable. […] Never wear your cell phone on your body. […] Men, get them out of your pocket. […] "Water. […] You need to make sure that you avoid fluoride. Drink the best quality water that you can have access to, spring water, structured water. Avoid municipal water. At least run it through an reverse osmosis filter if you are going to be drinking that. If you can afford it, use deuterium-depleted water for a period of time if you're trying to optimize fertilization. […] "Improve your breathing. […] Slow it down, less deep. Breathe through your nose, not through your mouth. Clear this whole piece of night breathing, mouth tape, whatever you need to do to get yourself to normalize this breathing function. Reduce the amount of breaths you take every minute. […] "Foods. Simple. Consume local and seasonal. […] Eliminate all the processed foods, your supplements, your creatine, your protein bars, your shakes. […] No fortified ones. Most grains contain all sorts of things we don't want. So yeah, just real food. […] "Body care. […] Get rid of all the shampoos, the fluoride toothpaste, the body creams, hair products, regular soaps. Get as natural as possible. […] "Clothing. When you're outside, you want to expose as much as your body as you can to the sunlight. No polyester underwear, no wired bras and shaped with chemicals types of things. […] Focus on those that […] are better for us, that will be your cotton, your linens, and so forth. "Medications. Educate yourself on vaccines and question how they may play a role during and after fertility, as well as for your children. It's going to be the first huge medical decision you make for them. Be aware of what's coming on day one when you give birth in a hospital. Just get your ducks in a row. And in fact, I just spoke to a doctor, Edward Geehr, who published a book in 2024 called […] _Unavoidably Unsafe_. […] We should all read that. […] "And then any medications that someone is on, should you be on these? Should you try and get off of them? Should you be on antidepressants? And can we manage this differently? And would that give my child a better chance? I think all of those are worth considering. "And then of course, yeah, enjoy life. All the right things, and not make it too complicated." Dr. Petra Davelaar & Dr. Doug Sandquist with Logan Duvall @ 26:00–32:16 (posted 2025-08-28)