The Longevity Study Guide
For the woman doing everything right whose body still isn't responding. The foundations that matter after 35, plus what your "normal" bloodwork might be missing.
Welcome to class.
You're at the gym, drinking the water, eating as clean as your schedule allows. You're running on coffee by 2pm, and the bloodwork came back "normal." And you're wondering why turning 40 has to look like this.
I'm Ashley: mom of three, former teacher, 10 years in holistic health. The foundations are simple, not always easy. Each lesson tells you what it is, what it's being studied for, and the one step to start with this week.
1. One lesson a week
Nobody needs nine new habits by Friday.
2. Pick one thing
Do the "start here" step until it's boring.
3. Bring questions
Good care is a conversation.
Your spine talks to everything.
Stiff neck from the laptop, low back from carrying kids, tension you've stopped noticing? Chiropractic isn't just for when something "goes out."
The basics
Your brain and spinal cord run every system in your body, and your spine is the armor around that cord. Nerves branch out between each vertebra to your muscles, organs and glands.
The chiropractic idea: when a joint in the spine isn't moving well, chiropractors call it a subluxation and believe it creates interference in that communication. An adjustment restores motion so your body can do what it's built to do: adapt and heal.
Being studied for
- Low back and neck pain (spinal manipulation is in medical guidelines for low back pain)
- Tension headaches
- Mobility and range of motion
- Nervous system balance and stress response
- Immune and stress markers (early research)
Signs your body is asking
- Neck or shoulder tension that never fully lets go
- Headaches that start at the base of your skull
- Low back stiffness in the morning
- Turning your head less far one way
- Workouts limited by stiffness, not strength
- Shoulders rounding forward from screens
Think maintenance
Like teeth, spines do better with regular care than with emergency visits.
Pair it with strength
Adjustments restore motion. Lifting (Lesson 1) helps your body hold it.
Expect an exam first
A good chiropractor checks your history, posture and motion before adjusting.
Gentle care for little spines.
Yes, and it looks nothing like an adult adjustment. For infants, chiropractors use about the pressure you'd use to test a ripe tomato. Most babies sleep right through it.
Birth is a big physical event
A long labor, a fast one, a C-section, or forceps or vacuum assistance all put real force on a newborn's head and neck. Chiropractors who work with babies look at how those first days may affect how a baby moves, feeds and settles.
Being studied for
- Colic and excessive crying
- Ear infections that keep coming back
- Constipation
- Latching and nursing on one side
- Sleep, focus and behavior
Studies so far are small, and researchers want more. Many parents share what they've noticed, too.
Things parents notice
- Always turns their head the same way
- A flat spot on the back of the head
- Fussy feeding or a hard time latching
- Arching or stiffening when held
- Straining or going days without a poop
- Big tumbles while learning to walk
Choose a pediatric-trained chiropractor
Look for extra training in pediatric care, such as through the ICPA (International Chiropractic Pediatric Association).
Keep your pediatrician in the loop
Chiropractic works alongside medical care. Fever, ear pain or a sick baby still means a call to the doctor.
Muscle is your longevity organ.
Doing classes five days a week and still feeling weaker than you did at 30? Cardio is great for your heart. Lifting is the signal that tells your body muscle is worth keeping.
The basics
Starting in our 30s, we slowly lose muscle each decade unless we give our bodies a reason to keep it. That gradual loss has a name: sarcopenia (age-related muscle loss).
Strength training is that reason. It isn't about getting bulky. It's about staying strong enough to carry the groceries, the kids and yourself for decades.
Being studied for
- Keeping muscle and strength as we age
- Bone density
- Blood sugar balance (muscle is one of the body's biggest users of glucose)
- Balance and fall prevention
- Mood and sleep quality
Start here
2–3 sessions a week
Full body, 30–45 minutes. You don't need two hours or a fancy split.
Learn 5 movements
Squat, hinge (like a deadlift), push, pull and carry. Those cover the whole body.
Add a little over time
One more rep or a few more pounds. That's progressive overload (slowly asking for a bit more).
Good to know
Being wrecked the next day isn't proof it worked; getting a little stronger over time is. New or working around an injury? Start with a coach or physical therapist.
On a GLP-1? Appetite drops, protein drops, and muscle can go with it. Lifting and protein matter even more for you.
Not just for gym bros.
Running on coffee and energy drinks by 2pm? Creatine is being studied for brain energy, not just biceps, and it's one of the most researched supplements out there.
The basics
Creatine is a compound your body already makes from amino acids, and you also get some from meat and fish. It's stored mostly in your muscles, with a smaller amount in your brain.
Its job: help recycle ATP, the quick-energy molecule your cells use for short, hard efforts.
Being studied for
- Strength and muscle when paired with training
- Brain energy, focus and memory
- Bone health alongside strength training
- Mood, especially in women
- Recovery between workouts
Start here
Keep it plain
Creatine monohydrate is the form used in most research. Look for third-party testing on the label.
Daily beats perfect
Most studies use 3–5 grams a day. Consistency matters more than timing.
Drink your water
Creatine pulls water into muscle, so stay hydrated. Stir it into coffee, a smoothie or water.
Good to know
The scale may tick up a pound or two at first. That's water stored in muscle, not fat. Creatine can also raise creatinine on bloodwork, a kidney marker, so tell your provider you take it. If you have kidney disease, check with them before starting.
Sauna + cold plunge: good stress.
Short, controlled bursts of heat or cold that ask your body to adapt. The research term is hormesis.
Sauna
Heat raises your heart rate much like light cardio and triggers heat shock proteins (proteins that help cells protect and repair themselves). Large studies from Finland have followed regular sauna users for years.
Being studied for
- Heart and blood vessel health
- Muscle recovery and soreness
- Relaxation and deeper sleep
Cold plunge
Cold water sets off a quick stress response, including a rise in dopamine and norepinephrine (chemical messengers tied to alertness and mood).
Being studied for
- Mood, energy and alertness
- Inflammation and recovery
- Stress resilience
Good to know
Cold right after lifting is being studied for possibly dulling muscle gains, so plunge on a different day or several hours apart. Skip the alcohol before either one, and never plunge alone. If you're pregnant, have a heart condition, low blood pressure or Raynaud's, talk to your provider first.
No plunge? No problem. Try a contrast shower: 2–3 minutes warm, then 30–60 seconds as cold as you can stand, repeated 3 times and ending on cold. Or finish every shower with 1–3 minutes of cold. It's the budget version of hot and cold therapy.
Light as cell fuel.
No, it's not a tanning bed. Different wavelengths, different job.
The basics
Red light therapy uses red and near-infrared wavelengths (light just past what our eyes can see). The research name is photobiomodulation.
The leading idea: this light is absorbed by the mitochondria (the energy makers inside your cells), which may help them make energy more efficiently. There's no UV, so it doesn't tan or burn.
Being studied for
- Skin tone, texture and collagen
- Muscle recovery after workouts
- Joint comfort
- Hair thickness
- Wound healing
Start here
Short and steady
About 10–20 minutes, 3–5 times a week. Consistency matters more than long sessions.
Know your wavelengths
Look for red around 630–670 nm and near-infrared around 810–850 nm, the ranges used in most research.
Follow your device
Distance and time vary by panel. Use the eye protection it comes with.
Good to know
Pick a device that lists its wavelengths and irradiance (power at your distance, in mW/cm²). Bare skin gets the most light, but thin, light-colored clothing still lets a good share through. Dark fabric blocks most of it. Some medications make skin more light-sensitive, so ask your provider.
What we use: a Clearlight infrared sauna with built-in red light therapy, so we get heat and light in one session.
The first 5 swaps.
Your body already has a detox system: liver, kidneys, gut, lungs and skin. Lowering your toxic load just means handing it less to process. No need to toss your whole house. Swap things as they run out.
Filter your water
Depending on where you live, tap water can carry chlorine byproducts, metals and microplastics. Look up your local water report, then pick a filter that's certified for what's in it.
Swap: straight tap → filtered
Store and heat food in glass
Some plastics contain BPA and phthalates, which are being studied as endocrine disruptors (chemicals that can interfere with hormones). Heat makes them more likely to leach into food.
Swap: plastic tubs → glass or stainless. Never microwave in plastic.
Go fragrance-free
"Fragrance" on a label can stand in for dozens of undisclosed ingredients, phthalates included. Start with what touches your skin all day: lotion, laundry soap and dryer sheets.
Swap: scented → fragrance-free; dryer sheets → wool balls
Clear the air
Plug-ins, sprays and scented candles release VOCs (volatile organic compounds) into the air you breathe. Indoor air is often more polluted than outdoor air.
Swap: plug-ins → open windows and a HEPA air filter
Upgrade your pans
Scratched nonstick coatings can flake into food. When yours are worn, replace them with something that doesn't need a coating.
Swap: worn nonstick → cast iron, stainless or ceramic
Parasites + coffee enemas: the facts.
Two of the most-asked-about gut topics online. Here's what they are, and how to do them the smart way.
Foundations first
Before anything fancy: plenty of fiber from plants, a fermented food most days, enough water, and slow, well-chewed meals.
Parasites
Parasite cleanses are all over social media, and for good reason: parasites are more common than most people think. They come in through food, water, pets and travel. If you've never done a cleanse, there's a good chance you're carrying a few.
But don't jump straight in. If your nutrition isn't dialed in and your drainage pathways (daily bowel movements, hydration, liver support) aren't open, a cleanse can backfire. Think headaches, fatigue, bloating and breakouts.
What we use: CellCore. Their protocols walk you step by step and include the cleanse plus all the support supplements. Check with your provider if you take medications.
Coffee enemas
We've been doing these for 12 years. Yes, really. Coffee goes both ways in our house.
A coffee enema is a small amount of brewed, cooled coffee held in the lower colon for a few minutes, then released. It's been used in detox circles for about a century.
Why people do it: supporters say compounds in coffee encourage bile flow and support the liver's detox pathways, including glutathione activity. Many people pair it with a cleanse to help move things out. Human research is still limited.
Skip it if you're pregnant or have a heart, kidney or bowel condition, and ask your provider first if you take medications.
Free biohacks first.
Wired at 10pm and dragging at 7am? That pattern often points to your body clock, and the best tools for it cost nothing. These four work with your nervous system and your circadian rhythm.
Morning sunlight
Natural light early in the day is the strongest signal to your circadian rhythm (your internal 24-hour clock).
Being studied for: sleep quality, healthy cortisol timing, daytime energy and mood
Blue light glasses
Screens and bright overhead lights give off blue light, which tells your brain it's still daytime.
Being studied for: melatonin timing and falling asleep more easily
Breathwork
A long, slow exhale shifts your nervous system toward "rest and digest" mode.
Being studied for: stress response, heart rate variability (a marker of recovery) and focus
Grounding
Also called earthing: skin-to-earth contact, like bare feet on grass, sand or soil.
Being studied for: sleep, stress and inflammation markers. Research is still early.
Your body's messengers.
What peptides are, why researchers are interested, and the questions to ask first.
The basics
Peptides are short chains of amino acids, the building blocks of protein. Your body makes thousands of them, and many work as messengers that tell cells what to do. Insulin is a peptide.
Therapeutic peptides are synthetic versions or fragments of these natural messengers.
Why the interest
Some of our natural signals decline with age. Researchers are studying whether specific peptides can support the body's own repair, recovery and energy pathways.
Each one has a different job, which is why the glossary below takes them one at a time.
Ask these first
Is a licensed provider prescribing it? Peptides are prescriptions, not supplements.
Have I had labs first? A health history and bloodwork set the starting point.
Is it from a licensed pharmacy? Sterile, tested and labeled, with oversight.
Do I have a reason to pause? Pregnancy, breastfeeding or a cancer history all need screening first.
How to read the glossary
Each peptide lists what it is and what it's being studied for. They aren't ranked or compared, and research on many is still early. With cancer or a cancer history, the research isn't settled, so the safest choice is to skip peptides until more is known.
Peptide glossary
facts, not rankings ✦BPC-157
A synthetic peptide based on a sequence from a protective protein found in stomach juice.
Being studied for
TB-500
A synthetic fragment of thymosin beta-4, a repair protein found in nearly every cell.
Being studied for
GHK-Cu
A copper-binding peptide found naturally in the blood. Levels drop as we age.
Being studied for
Sermorelin
A synthetic version of part of GHRH, the natural signal that prompts your pituitary gland to release growth hormone.
Being studied for
MOTS-c
A peptide made by your mitochondria, the energy makers inside your cells.
Being studied for
Epitalon
A synthetic four-amino-acid peptide modeled on a compound from the pineal gland, which helps run your sleep cycle.
Being studied for
Selank
A synthetic peptide modeled on tuftsin, a small peptide involved in the immune system.
Being studied for
Glutathione
A tripeptide (three amino acids) your body makes, and one of its main antioxidants.
Being studied for
NAD+ Bonus
Not technically a peptide, but always part of the conversation. A coenzyme (helper molecule) in every cell. Levels decline with age.
Being studied for
My questions for my provider
write it down ✦Tip: download the PDF to print this page.
Educational only. Peptides require a prescription.
Normal isn't optimal.
Lab "normal" ranges usually reflect the middle 95% of a reference group: an average, not an ideal. They're built to flag disease, not to tell you whether you're thriving. So you can feel off for years and still be told everything looks fine.
How one marker can drift
Illustration only. Every marker and every lab is different.
Drift is slow
Many markers creep for years before they cross the line. Insulin, for example, can rise long before blood sugar looks off.
Panels are short
A routine panel is often just a blood count and a metabolic panel. Thyroid is often TSH only.
Waiting costs time
Waiting for "abnormal" can mean waiting until there's a problem to treat, instead of a trend you can change.
Say this at your next appointment
"Can I see my actual numbers, and how they compare to last time? And can we add fasting insulin and a full thyroid panel?"
Bring your last few years of results if you have them. The trend often tells you more than one number.
What to ask for
screenshot this ✦Beyond the basic blood count (CBC) and metabolic panel (CMP), these are the markers worth asking your provider about. And ask for your actual numbers, not just "normal."
Blood sugar + metabolism
- Fasting insulin: often left off; can rise years before glucose does
- Hemoglobin A1c: your roughly 3-month blood sugar average
- Fasting glucose: a single-moment snapshot
Hormones
- Estradiol + progesterone: timed to your cycle if you still have one
- Total + free testosterone, SHBG: yes, women need testosterone too
- FSH + LH: context for perimenopause
- DHEA-S + morning cortisol: your adrenal and stress picture
Full thyroid
- TSH: the signal from your brain to your thyroid
- Free T4 + free T3: the hormones themselves; T3 is the active one
- Reverse T3: an inactive form that can rise with stress
- TPO + thyroglobulin antibodies: can show autoimmune thyroid activity before TSH changes
Nutrients
- Ferritin + iron panel: ferritin is your iron storage, a common energy piece
- Vitamin D: involved in bone, immune and mood health
- B12 + folate: energy, nerves and red blood cells
- Magnesium: used in hundreds of reactions in the body
Heart + inflammation
- Lipid panel + ApoB: ApoB counts the particles that carry cholesterol
- Lp(a): mostly genetic; usually checked once
- hs-CRP + homocysteine: general inflammation and heart-health markers
We offer comprehensive blood panels.
Panels that go beyond the basics, so you see the whole picture, not just "normal." In person in Casper and Douglas, Wyoming, or by telehealth.
Protein is the non-negotiable.
On a GLP-1 and realizing at dinner you've barely eaten? Or just too busy to think about lunch? After 35, protein is the nutrient most worth planning for.
The basics
Protein gives your body the amino acids it uses to build and repair muscle, skin, hair, enzymes and hormones.
With age, muscles get less responsive to protein (researchers call this anabolic resistance), so each meal has to count a little more.
Being studied for
- Keeping muscle with age, alongside lifting
- Feeling full and steady between meals
- Recovery after workouts
- Bone health
- Steadier blood sugar when paired with carbs
The numbers researchers use
25–30g per meal
Studies in active adults often land around 1.2–1.6 grams per kilogram of body weight a day. Spreading it across meals is easier than cramming it into dinner.
Kidney disease? Ask your provider before raising protein. They can help you find your number.
Not hungry? Try these.
- A protein shake. Liquids go down easier when appetite is low.
- Greek yogurt or cottage cheese
- Eggs, any style
- Bone broth in a mug
- Jerky or turkey sticks in your bag
- Rule of thumb: eat the protein first
Fewer roller coasters.
The 3pm crash and the sudden need for something sweet? Blood sugar swings are often part of that story.
The basics
When you eat carbs, blood sugar rises and insulin brings it back down. Big, fast spikes are often followed by dips, and dips can feel like fatigue, shakiness, irritability and cravings.
Spikes aren't evil. The goal is a gentler curve, more often.
4 habits being studied for steadier blood sugar
Walk after meals
Even 2–5 minutes of light walking after eating is being studied for softening spikes. Ten minutes is even better.
Eat in order
Veggies and protein first, carbs last. Food order is being studied for smaller after-meal spikes.
Dress your carbs
Pair carbs with protein, fat or fiber. Plain toast and toast with eggs make two very different curves.
Keep lifting
Muscle is one of the body's biggest users of glucose. Lesson 1 strikes again.
Curious about your own curve? Some people wear a continuous glucose monitor for a few weeks with their provider's guidance. And ask about fasting insulin and A1c (Lesson 9).
Sleep is the multiplier.
Coffee at 9, again at 2, wired at bedtime? Everything else in this guide works better when sleep does. It's when your body does much of its repair.
- The 2pm coffee. Caffeine's half-life is about 5 hours, so some of it is still working at bedtime.
- The nightcap. Alcohol can help you fall asleep, then breaks up the second half of the night, including REM sleep.
- Bright screens late. They tell your brain it's still daytime.
- A warm room. Your core temperature needs to drop for you to fall asleep.
- Sleeping in on weekends. It shifts your body clock like mini jet lag.
- Same wake time daily, weekends included.
- Morning light to set the clock (Lesson 7).
- A caffeine cutoff about 8 hours before bed.
- Cool, dark and quiet, around 60–67°F.
- A 10-minute wind-down: dim lights, a few slow sighs, no email.
Good sleep is being studied for
Appetite hormones · insulin sensitivity · mood · workout recovery · immune health · memory
Good to know
Snoring, gasping, or waking unrefreshed after 7+ hours? Ask your provider about a sleep study. And if 3am wake-ups and night sweats are new in your 40s, hormones may be part of it. Keep reading.
Could it be perimenopause?
Perimenopause is the transition before menopause (12 months in a row with no period). It often starts in your 40s, sometimes in your late 30s, and can last several years. You're not imagining it.
What's happening
Progesterone often declines first, as ovulation becomes less regular.
Estrogen doesn't just drop. It can swing high and low, which is why symptoms come and go and why one lab draw can look "normal."
Check what sounds familiar
- Waking at 3am
- Night sweats or hot flashes
- New anxiety or irritability
- Heavier or irregular periods
- Brain fog
- Achy joints
- Lower libido
- Worse PMS
- Body changing on the same habits
- Dry skin or thinning hair
Checked a few? Bring this list to your provider.
Track it
Log your cycle and symptoms for 2–3 months. Patterns make the conversation faster.
Time your labs
Some hormone labs mean more on certain cycle days. Ask when to draw (Lesson 9).
Know the options
From lifting, sleep and blood sugar habits to hormone therapy, which is FDA-approved for hot flashes and night sweats.
Myth busters.
how many did you believe? ✦✕ "Lifting will make me bulky."
Fact: Building a lot of size takes years of targeted training and eating for it. For most women, lifting builds strength and shape.
✕ "It's too late after 40."
Fact: Muscle and strength respond to training at every age studied, including in people in their 90s.
✕ "Normal labs mean I'm optimal."
Fact: Reference ranges are built to flag disease, not to tell you you're thriving. (Lesson 9)
✕ "More cardio fixes everything."
Fact: Cardio is great for your heart. Muscle needs a strength signal to stick around. (Lesson 1)
✕ "A detox tea cleanses my body."
Fact: Your liver, kidneys and gut do the detoxing. Help them by lowering what they have to process. (Lesson 5)
✕ "Peptides are steroids."
Fact: Peptides are short chains of amino acids, and your body makes thousands. Steroids are a different class, built from cholesterol. (Lesson 8)
✕ "Creatine is just for men."
Fact: It's being studied in women for strength, brain energy, bone and mood. (Lesson 2)
✕ "If it's natural, it's safe."
Fact: Herbs and supplements can be strong and can interact with medications. Ask before you add. (Lesson 6)
Your daily blueprint.
Every lesson, mapped onto one ordinary day. Not a checklist to ace. A rhythm to grow into.
- Wake up
Same time as yesterday. Water first, then 5–10 minutes of outdoor light, barefoot if you can. · Lesson 7, Extra 3
- Breakfast
25–30 grams of protein, with your creatine stirred into your coffee or smoothie. · Lesson 2, Extra 1
- Midday
Lift 2–3 days a week. After lunch, take a 2–10 minute walk. · Lesson 1, Extra 2
- Afternoon
Last coffee about 8 hours before bed. Protein snack if dinner is far away. Two slow sighs when stress spikes. · Extra 3, Lesson 7
- Evening
Veggies and protein first at dinner, then a short walk. Sauna or red light on the days you use them. · Extra 2, Lessons 3–4
- Wind down
Dim the lights, glasses on, screens down. Cool, dark room around 60–67°F. · Lesson 7, Extra 3
- Each week
One toxic-load swap as things run out. Cold plunge on non-lifting days. · Lessons 5, 3
- Each year
Comprehensive labs, and compare the trend to last year, not just the range. · Lesson 9
Your starter week.
pick 2 or 3 to start ✦If you only do three: lift weights, get morning light, and get labs that show your real numbers.
| Habit | Aim for | M | T | W | T | F | S | S |
|---|
Tap the boxes to check off your week. Your checks are saved on this device.
Knowledge check
no grades, promise- Which form of creatine is used in most research?
- True or false: being sore means your workout worked.
- Name one marker that's often left off routine bloodwork.
- Why might you cold plunge on a different day than you lift?
- What's the first step before any parasite cleanse?
Show answers
1. Monohydrate · 2. False, getting stronger over time is the goal · 3. Fasting insulin, ApoB, free T3 or ferritin · 4. Cold right after lifting may dull muscle gains · 5. Open your drainage pathways first
Class dismissed
You're not doing it wrong. You just needed the full syllabus.
Feeling good at 40 and beyond isn't luck. It's a handful of basics, done consistently, guided by real data about your body.
let's make your health part of the conversation.This guide is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease, and these statements have not been evaluated by the FDA. Talk with a licensed provider before starting any new supplement, therapy or exercise program, especially if you are pregnant, nursing, have a medical condition or take medication.