Episode 39

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).
In this episode, we explore why Sermorelin is often discussed in conversations about sleep, even though it is not a sleep aid in the traditional sense. The connection comes down to deep sleep and recovery biology. One of the most important growth hormone pulses occurs shortly after sleep begins and is closely tied to slow wave sleep, the stage responsible for overnight restoration.

We break down what Sermorelin is, why its upstream signaling role matters, and how it fits into sleep quality rather than sleep onset. We also explain why Sermorelin is often stacked with DSIP and Selank, with each peptide addressing a different layer of sleep depth, continuity, and stress regulation.

The focus of this episode is not sedation, but supporting quieter, deeper, more restorative nights and more stable mornings.

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Episode 38

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).
In this episode, we take a deeper look at Delta Sleep Inducing Peptide, or DSIP, and why it continues to draw interest in sleep and recovery research. Many people sleep for hours but still wake up feeling exhausted, tense, or mentally foggy. The problem often is not falling asleep. It is failing to reach the deep, restorative stages of sleep where the body and nervous system actually recover.

We explore how DSIP is studied for its potential role in supporting deep sleep quality, stress signaling, and nervous system balance rather than acting as a sedative. This episode breaks down why deep sleep matters so much for physical recovery, mental clarity, and emotional resilience, and how chronic stress can quietly disrupt that process.

You will also hear how DSIP is often discussed alongside other peptides such as Selank, Sermorelin, CJC-1295, and Ipamorelin, not to force sleep, but to support the systems that allow real recovery to happen overnight. If you have ever felt wired but tired, or slept through the night yet still felt unrested, this conversation sheds light on why that happens and where DSIP fits into the bigger recovery picture.

This episode is for educational and research discussion purposes only and does not constitute medical advice.

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).Episode 37

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Inflammation is something many people live with every day, even when they cannot quite put their finger on it. In this episode, we explore why inflammation often lingers longer than it should and how that constant background irritation can affect how the body feels and recovers over time.

We break down how researchers are starting to look at inflammation differently, focusing less on masking symptoms and more on understanding the signals that keep irritation switched on. The conversation also touches on emerging peptide research and why certain compounds are gaining attention for their potential role in calming inflammatory responses.

If you feel like inflammation is always part of the picture and you want to better understand what science is uncovering right now, this episode offers a clear, approachable look at a complex topic that affects almost everyone.

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).Episode 36

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In this follow up episode, we break down why retatrutide is being called the "Triple G".  We explain how combining GLP-1, GIP, and glucagon receptor activity may influence appetite, insulin response, and energy expenditure at the same time. 

The conversation highlights published research showing weight reduction approaching 29 percent, near normalization of liver fat signals, improvements in triglycerides and blood pressure, and early quality of life markers like physical function and pain related outcomes. 

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Episode 35

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).
In this episode, we take a closer look at TB-500 and why it continues to draw interest.

TB-500 is a synthetic peptide modeled after a small active sequence of Thymosin Beta 4, a protein involved in cell movement and structural organization. Researchers focus on this fragment because it interacts with actin, a key component of the cell’s internal framework.

Across many studies, TB-500 has been associated with changes in cell migration, cytoskeletal dynamics, tissue signaling, and markers related to blood vessel formation and extracellular matrix activity. It is also frequently discussed in analytical science, where advanced detection methods allow it to be identified and measured with high precision.

Together, these observations help explain why TB-500 remains a point of interest when studying how cells move, adapt, and reorganize at a microscopic level.

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Episode 34

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).
In this episode, we explore Tesamorelin, a peptide widely discussed for its connection to growth hormone signaling and deep abdominal fat. Unlike approaches that add growth hormone from the outside, Tesamorelin is studied for how it encourages the body to release more of its own growth hormone through natural communication pathways.

We break down why Tesamorelin is often associated with visceral fat rather than scale weight, how it fits into long-term metabolic and body composition conversations, and why many people prefer signaling-based peptides over more aggressive hormone strategies. The episode also covers why Tesamorelin is considered a gradual, research-driven option rather than a fast fat-loss solution.

If you are interested in peptides that support balance, metabolic health, and long-term body composition goals, this episode provides a clear, easy-to-understand overview of why Tesamorelin continues to stand out in peptide research discussions.

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Episode 33

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Cortisol is meant to help you wake up and handle stress during the day, not keep you alert when your body is desperate for rest. In this episode, we break down how chronic stress disrupts cortisol’s natural rhythm and why so many people feel exhausted all day but wired at night.

You’ll learn how elevated nighttime cortisol interferes with melatonin, deep sleep, and recovery, leading to fragmented sleep, early morning waking, and that familiar “wired but tired” feeling. We also explore why sleep issues driven by stress are not simply a matter of poor habits, but a sign that the nervous system is stuck in high alert mode.

The conversation then shifts to research-focused peptides often discussed in the context of cortisol-related sleep disruption. Semorelin is examined for its role in supporting deep sleep and recovery signaling that stress can suppress. DSIP is discussed for its connection to sleep architecture and the brain’s ability to enter deeper, more restorative sleep phases. Selank is explored for its effects on anxiety and stress pathways that can keep the mind racing at night.

Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).
This episode is designed for anyone who struggles with falling asleep, staying asleep, or waking up feeling unrefreshed despite getting enough hours in bed. It offers a clearer understanding of why sleep breaks down under chronic stress and how restoring biological signals may be the key to sleeping well again.

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).Episode 32

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Chronic stress is often blamed on high cortisol, but that explanation misses what is really happening beneath the surface. In this episode, we break down why cortisol is not the enemy, and how long-term stress quietly damages the systems that cortisol depends on to function properly.

We explore the concept of cortisol resistance and why so many people feel wired and exhausted at the same time. The conversation shifts inside the cell, where mitochondria play a central role in energy production, inflammation, and stress signaling. When stress is constant, mitochondria are pushed too hard for too long, leading to inefficient energy production and a body that never fully exits survival mode.

You’ll learn why NAD+ is a critical cellular resource that chronic stress rapidly depletes, and how low NAD+ levels can make recovery feel impossible even when sleep and nutrition improve. We also dive into mitochondrial-targeted research peptides like MOTS-C and SS-31, explaining how they are being studied for metabolic adaptation, mitochondrial protection, and stress resilience.

Rather than focusing on how to suppress cortisol, this episode reframes the problem as one of cellular repair. When energy systems recover, stress signals often calm naturally. If you’ve ever felt stuck in a cycle of fatigue, anxiety, inflammation, and poor sleep, this episode offers a deeper, more hopeful way to understand what may be happening inside your body.

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Episode 31

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In this episode of The Peptide Research Podcast, hosts Amy Andrews and Todd Collins (AI personas of Peptide Research) take a closer look at ARA-290, also known as cibinetide, a research peptide designed to activate the body’s natural repair signaling without stimulating red blood cell production.

ARA-290 has drawn attention in the scientific community for its potential role in calming inflammation, supporting nerve health, and influencing tissue recovery. Much of the human research has focused on small fiber neuropathy, particularly in people with sarcoidosis, where studies have explored both symptom improvement and objective nerve fiber measurements. Additional research has examined ARA-290 in diabetic neuropathy, diabetic eye disease, and broader inflammatory and tissue stress models.

We break down how ARA-290 works through what researchers call the innate repair receptor, why it is considered non erythropoietic, and how it differs from erythropoietin itself. We also discuss what the published safety data actually shows, what remains unknown, and why this peptide continues to be studied years after its initial development.

If you are interested in peptides that focus on repair signaling rather than symptom suppression, this episode offers a clear, grounded overview of the science behind ARA-290 and where it fits in the evolving peptide research landscape.

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Episode 30

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Hosted by Amy Andrews and Todd Collins (AI personas of Peptide Research).
In this episode, we explore why Thymosin Alpha-1 is often called the captain of the immune system. Rather than focusing on immune strength alone, this conversation looks at immune organization, balance, and decision making.

We discuss how the thymus influences T-cell education, why immune systems can become either sluggish or overly reactive, and why Thymosin Alpha-1 continues to attract attention in research related to immune regulation and resilience. The episode also dives into auto immune interest, overactive immune patterns, and the growing prevention mindset around immune health.

If you are interested in understanding how immune clarity and coordination affect energy, inflammation, recovery, and long term wellness, this episode provides a grounded and approachable overview of why Thymosin Alpha-1 remains one of the most talked about immune focused peptides in research today.

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