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Owned by Anthony

Where science meets results. Learn peptides, training, recovery & more. No ego, no fluff—just smarter bodies, better minds, built to adapt.

429 contributions to Castore: Built to Adapt
FOX 04-DRI same day as GHRH/GHRPS
@Anthony Castore thouhjts on taking Fox 04 dri same day as GHRH/GHRP .. couple hours apart ??? Is there any sense to that or is better to just wait till I’m done with GHRH/GHRP before getting into Fox 04 dri … thanks As always for you input and anyone else 🙏
0 likes • 20h
Personally, I would not combine them on the same day, and I wouldn’t assume a couple of hours apart solves the concern. Let’s walk through what each one is asking your cells to do. GHRH and GHRPs encourage your pituitary the small gland beneath your brain to release growth hormone. Growth hormone can then increase IGF-1, another messenger that helps support growth and tissue maintenance. Think of this as a message being passed along, stimulate growth hormone, increase IGF-1, then deliver instructions to responsive cells. The strength and duration of that message depend on the compounds and how they’re used. Inside the cell, IGF-1 can activate a signaling chain called PI3K–AKT. You don’t need to memorize those letters. What matters here is that this chain can strengthen the cell’s “keep functioning and stay alive” instructions. Now we need to introduce p53. Think of p53 as part of the cell’s damage-inspection system. When something goes wrong, it helps coordinate the response. It will pause division, attempt repairs, or, under the right conditions, activate programmed cell death. ( apoptosis). It’s a controlled dismantling of the cell. One way AKT supports survival is through a protein called MDM2. MDM2 acts like a brake on p53, helping control how much p53 is available and how strongly it can act. In experimental studies, activating AKT can strengthen that brake. That is one connection between growth-factor signaling and a cell’s ability to resist death. FOXO4-DRI approaches the situation from another direction. FOXO4 is a protein your cells naturally make. In certain senescent cells—cells that have stopped dividing but remain alive, sometimes contributing to tissue dysfunction FOXO4 binds to p53 and helps prevent the cell from undergoing apoptosis. FOXO4-DRI was designed to interrupt that interaction. In the models studied, this allows active p53 to move out of the nucleus, the compartment holding the cell’s genetic instructions, and helps activate the machinery that dismantles the cell. The intended outcome is removal of susceptible senescent cells.
Anthony's Upcoming Optimization Cohort
Hello, gang! Just a short video giving the breakdown on @Anthony Castore's upcoming optimization course.
Anthony's Upcoming Optimization Cohort
1 like • 2d
Randy, this is awesome! Thank you! You've got a real gift for this, and you shared it without me even asking. I've been on The Mang Dojo a couple of times and loved every conversation. If you're not listening yet, start here 👇 https://open.spotify.com/show/29nUBARozqaEQr2s3ch94s The Mang Dojo episodes where I am a guest: S2E57 The Myth Of Dark Strength (with Chris Duffin) https://open.spotify.com/episode/6aLDHq2kavSvAXxnzRfoIY S2E56 "Grindatrutide" (with Chris Duffin) https://open.spotify.com/episode/1ySpAG9zgFCYipBh4O09Qx S1E52 Fighting The Reaper At The Cellular Level...And Doing It On A Budget (Part 2) https://open.spotify.com/episode/0hWndKBeWYknIsy5oyGc31 S1E51 Fighting The Reaper At The Cellular Level...And Doing It On A Budget (Part 1) https://open.spotify.com/episode/6bzUPJ8Z4PGRhKVuvzndNa
0 likes • 20h
@Randy Miyan I do as well!
Your fat has a job. Help it do it better.
Most people judge a fat loss plan by what happens on the scale. I understand that. You want your clothes to fit, your waist to come down, and the work you are putting in to show up somewhere besides your calendar. Those are legitimate goals. But there is another question worth asking along the way: how well is your body handling the energy moving through it? A new review in Science, "When fat adapts," brings that question into focus. Karima Drareni and Patrick Seale describe fat as a responsive organ whose function depends on its cells and their surroundings. My practical interpretation is that a good plan should improve both body composition and the body's ability to manage fuel. The scale can help us follow the first part. It cannot explain the whole story. Think of healthy fat tissue as a fuel depot. After a meal, it stores energy. Between meals and during activity, it releases some of that energy for other tissues to use. Having somewhere appropriate to put fuel is protective. Human genetic research links limited peripheral fat storage capacity with insulin resistance and cardiometabolic disease. Someone can therefore carry less visible fat while still having significant metabolic problems. Appearance gives us information, but it does not replace an assessment. The depot also needs infrastructure. Blood vessels deliver oxygen and nutrients. A supporting matrix gives the tissue structure. Immune cells help maintain and repair it. In human exercise research, regular exercisers had differences in these features compared with similar people who were sedentary, including more capillaries and fewer macrophages in abdominal fat beneath the skin. That is a much more interesting story than counting the calories displayed on a treadmill. Here is another useful distinction, removing fat and improving metabolism are different interventions. In a small human study, substantial abdominal liposuction did not significantly improve insulin sensitivity or the measured cardiovascular risk factors. That does not mean losing excess weight is unhelpful. It means we cannot assume every way of making a body smaller produces the same biological result. A cosmetic change should be evaluated as a cosmetic change unless broader benefits have actually been demonstrated.
HRV (heart rate variable )
Would love a breakdown of HRV (heart rate variable ). How to read it , know how to use it in practice when putting together a mitochondria stack, peptide stack and training. Thanks @Anthony Castore
1 like • 7d
HRV is a useful window into autonomic balance, not a direct read of mitochondrial output. Most of what wearables report (especially RMSSD) tracks parasympathetic, or vagal, tone at rest. Higher relative to your own baseline usually means the system is recovered and flexible. Lower relative to your baseline often means sympathetic load, incomplete recovery, travel stress, or illness. There is no universal "good" number. Your trend against yourself is the signal. I treat morning resting HRV as a readiness filter for training stress, not as a prescription for which research compounds to add. It is also a good proxy for how fast youll recover from a workout. If you normally have a 60 HRV an dit was down to a 40, you may feel tired or not notice at all. CNS fatigue can lag. A lot of people will still push through the same workout. It will feel like more effort but, how fast they can recover from it is where it really shows up. The human evidence supports HRV-guided load decisions more strongly than it supports using HRV to pick a mitochondria or peptide stack. Mitochondrial health can influence HRV indirectly through metabolic stress, inflammation, and cardiovascular demand, but a drop in HRV is not proof that mitochondria are "failing." Sleep debt, alcohol, late training, and orthostatic measurement error move the number just as hard. What I would look at in your case is how your weekly HRV mean and its day-to-day swing line up with training blocks and travel.
0 likes • 7d
@Mike T Nelson thank you
Paid subscription/ free
I am having trouble deciding if I should upgrade to a paid subscription. Can anyone put their input if there is a difference between the paid and free subscription in terms on content ? Much appreciated
0 likes • 7d
Fair question. The free community is where the daily conversation and a lot of the teaching live. There are more group discussions and I try to answer questions here occasionally as schedule allows. The paid tier is built around the courses and deeper structured material, If you think of the free community as the "what" the paid is the "how" it is where you get a front seat in the classroom with me and I answer questions with more depth. There are a few courses and I do a monthly webinar breaking down my personal protocol as well as member Q&A. This is a great spot for people who want to have a better understanding of things and what to do about them. The cohort I am launching in January is what I am most excited about. It is me explaining the repeatable thought process that will give you clarity and understanding of where a compound fits, how to sequence it, what needs to be there to support it, how to understand your individual situation and how to assess and adjust your protocol. I also offer consultation and mentorship opportunities. If your bottleneck is body composition and metabolic stubbornness, I htink you would get a lot of value from the course I built "Why Your Body Won't Let Go Of Fat". I hope this helps!
0 likes • 7d
@Aleksandr Barayev thank you for your support. I wouldn’t be where I am without him. He is truly brilliant and generous with his time and knowledge. I’ll get to catch up with him this December and I’ve already got my questions ready to go. I’m grateful he’s so patient. I have some exciting upgrades planned for the member community this next year. I’m working behind the scenes to put the pieces together. If there’s ever any feedback you have on the community for how I can make it better reach out anytime
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Anthony Castore
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@anthony-castore-4271
Anthony Castore — SSRP Fellow & strength coach blending peptides, training, and cellular medicine to optimize performance and recovery.

Active 6h ago
Joined Jul 31, 2025
Powell, OH
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