News

Zinc and Depression: What the Trial Evidence Actually Shows
Zinc comes up often in depression-and-nutrition circles, usually pointing to observational studies showing depressed people tend to have lower blood zinc. That's a weaker kind of evidence — it can't separate cause from effect. The more useful question is what happens in an actual randomized trial. There's a real answer, and it's more specific than "zinc helps depression." The trial evidenceA systematic review and meta-analysis pooled 5 randomized controlled trials testing zinc supplementation as an add-on to antidepressant medication — not as a standalone treatment.1 The pooled result: a standardized... Read more...
Hops and Stress: What a Small Crossover Trial Found
Hops (Humulus lupulus) is best known as a beer ingredient, but the same plant compounds have a real pharmacology — the strobile (flower) extract has been studied for calming, sedative effects independent of alcohol. It's also one of the ingredients in Proco's Sleep Support blend. Here's what the actual trial evidence shows. Long before anyone put hops through a randomized trial, European herbal tradition had already claimed it: dried hop cones stuffed into pillows, hop tea taken as a folk sleep aid, and — per brewing lore — hop-pickers said... Read more...
Exercise and Depression: What the Trials Actually Show
Exercise as an intervention for depression gets a lot of enthusiastic coverage. The trial data supports it — with real, specific limits worth knowing before expecting too much from any one workout. The evidence baseA 2025 systematic review and meta-analysis pooled 9 randomized controlled trials and 514 participants, looking specifically at high-intensity exercise and depression symptoms.1 The resultHigh-intensity exercise produced a statistically significant improvement in depression symptoms — an overall standardized mean difference of −0.23, and a more pronounced −0.44 on the Hamilton Rating Scale specifically. −0.44 The standardized mean... Read more...
Burnout and Cognitive Failure: What the Research Shows
"Burnout" often gets treated as a motivation problem — push through it, take a long weekend, move on. A study of 302 industrial workers points to something more specific and more measurable: burnout has a quantifiable relationship with everyday cognitive errors, and that relationship carries a real, if modest, number attached to it.1 The study The research, published in Health Psychology Report in 2023, surveyed 302 workers at an Iranian tire manufacturing plant (average age 38, the large majority married, most with a high-school-level diploma).1 Researchers used three validated instruments:... Read more...
Which Type of Exercise Actually Helps Anxiety
"Exercise helps anxiety" is true but not very actionable on its own — which type, and how much? A 2026 network meta-analysis set out to answer exactly that. The evidence baseFor clinically diagnosed anxiety disorders, the analysis pooled 17 RCTs and 760 participants. A wider analysis — covering both diagnosed anxiety and anxiety symptoms more broadly — pooled 29 trials and 1,372 participants. A network meta-analysis (NMA) differs from a standard trial by pooling every direct and indirect comparison across all interventions in the literature — resistance vs. control, mind-body... Read more...
Omega-3 and Cognitive Aging: The Dose-Response Relationship
A dose-response relationship — more of a thing producing more of an effect — is one of the stronger signals available in nutrition science, because it's much harder to explain away than a single positive trial. For omega-3 and cognitive function, a 2025 meta-analysis went looking for exactly that. The evidence baseA systematic review and dose-response meta-analysis pooled 58 randomized controlled trials, with doses ranging from 230mg to nearly 5,000mg/day and trial lengths from 4 to 160 weeks.1 58 randomized controlled trials pooled into one dose-response model, spanning doses from... Read more...
Magnesium and Sleep: What a New Trial Actually Found
Magnesium for sleep is one of the most-searched supplement questions there is — and most of what gets written about it doesn't cite an actual trial. Here's one, published in 2026. The trial155 healthy adults reporting poor sleep took 250mg of elemental magnesium (as bisglycinate) plus 1,523mg of glycine nightly, or a placebo, for four weeks, in a randomized, placebo-controlled design. The resultThe primary outcome — Insomnia Severity Index — improved significantly more on magnesium: a 28% reduction from baseline, versus 18% on placebo. That's a real, statistically significant difference.... Read more...
The Cortisol Story Is More Complicated Than the Headlines
"Lowers cortisol" is one of the most repeated claims in stress-supplement marketing — and one of the least often checked against an actual trial. We went and checked. The trialA randomized, double-blind, placebo-controlled crossover trial gave 30 adults 200mg/day of L-theanine for four weeks, then measured stress, anxiety, sleep quality, executive function — and cortisol, both salivary and serum.1 What actually improvedThe subjective and cognitive results were genuinely positive: self-rated stress and anxiety scores dropped, sleep quality improved, and executive function scores went up, all statistically significant versus placebo. What... Read more...
The Neuroscience of Attention: What's Actually Different in an ADHD Brain
Dopamine balance, a prefrontal cortex that shows up differently, a mind-wandering network that won't switch off. Here's what neuroscience actually shows about an ADHD brain. Read more...
What the Research Actually Says About Nutrition and Attention
L-theanine, omega-3 and magnesium all get cited in focus and attention conversations. Here's what the actual human trial evidence shows for each — and where it stops. Read more...
Adult ADHD in Ireland: What the Wait Actually Looks Like
What an adult ADHD assessment in Ireland actually costs and how long it actually takes — public wait times, real private pricing, and the shared-care gap nobody mentions upfront. Read more...
Soft, calm terrain-wave illustration in cream and stone tones with the headline Grief and the brain
Grief and Your Brain: What the Research on "Grief Brain" Shows
Grief and loss can cause real, measurable memory and attention changes — sometimes called "grief brain." Here's what the research (and, for a minority of people, Prolonged Grief Disorder) actually... Read more...
Is 'Highly Sensitive Person' real? What 25 years of peer-reviewed research on sensory processing sensitivity actually shows, versus what social media adds on top
Is "Highly Sensitive Person" a Real Thing?
Yes, with real research behind it — and also no, not in the way most of what you've seen about it online claims. "Sensory processing sensitivity" (SPS) is a legitimate,... Read more...
Omega-3 and Postpartum Depression: What the Research Actually Shows — Proco
Omega-3 and Postpartum Depression: What the Research Actually Shows
Omega-3 fatty acids — specifically DHA and EPA — have been studied as a possible risk-reduction factor for postpartum depression, and the honest summary is: the evidence is real but... Read more...
Magnesium and Menopause: What the Evidence Shows for Sleep and Mood — Proco
Magnesium and Menopause: What the Evidence Shows for Sleep and Mood
Menopause isn't a condition to treat — it's a normal transition, and magnesium isn't a treatment for it. But the transition genuinely disrupts sleep and mood for a lot of... Read more...
ADHD and Sleep: Why They Overlap — Proco brain health blog header
ADHD and Sleep: Why They So Often Overlap
ADHD and sleep problems overlap so often that researchers now treat the connection as close to the rule rather than the exception: reviews of the evidence put disrupted sleep —... Read more...
Migraine and Magnesium: What the Trials Show — Proco evidence review
Migraine and Magnesium: What the Clinical Evidence Shows
Magnesium is one of the few supplements with a real guideline endorsement for migraine prevention — the American Academy of Neurology and American Headache Society class it as "probably effective,"... Read more...
Modifiable Dementia Risk: What the Research Actually Shows
The best current evidence on dementia risk comes from the Lancet Commission on dementia prevention, intervention, and care — a standing group of dementia researchers who periodically review the global evidence and publish population-level estimates. Their 2024 update lists 14 modifiable risk factors — things like hearing loss, high blood pressure, smoking, physical inactivity, diabetes, excessive alcohol, social isolation, air pollution, untreated vision loss, high LDL cholesterol, depression, obesity, traumatic brain injury, and less education — that together are associated with an estimated 45% of dementia cases worldwide, in the... Read more...
PMS, PMDD and magnesium — what the research actually shows
PMS, PMDD and Magnesium: What the Research Actually Shows
Three small, decades-old trials on magnesium and premenstrual symptoms show real but narrow evidence — strongest for physical symptoms, thinner for mood, and never tested in diagnosed PMDD. Read more...
Magnesium and ADHD: What the research actually shows — Proco
Magnesium and ADHD: What the Research Actually Shows
Several observational studies link lower magnesium status to more severe ADHD symptoms in children, and small trials combining magnesium with B6 or vitamin D show modest improvements — here's what... Read more...
Sleep Difficulties in Autism: What the Melatonin Research Shows
Autistic children and adults fall asleep, stay asleep, and sleep through the night at meaningfully lower rates than the general population — research reviews put sleep problems at 40–83% of autistic children, with sleep-onset insomnia (trouble falling asleep) the single most common issue, at roughly 65%.1 Melatonin is the best-studied supplement for this specific symptom, with genuine double-blind, placebo-controlled trial evidence behind it — most of it in autistic children, including a large, prescription-strength trial that led to regulatory approval in Europe and Canada.4 None of that evidence means melatonin... Read more...
Omega-3 and Adult ADHD: What the Evidence Shows
Omega-3 fatty acids (EPA and DHA) have a real, decades-long research base in ADHD — but almost all of it is in children and adolescents, and even there the picture is mixed. Two influential meta-analyses found small but statistically significant improvements in attention and hyperactivity ratings12, while a more recent, more rigorous Cochrane review of 37 trials found little evidence that omega-3 outperforms placebo at all4. Where an effect does show up, it's consistently smaller than what stimulant or non-stimulant medication produces5. And research conducted specifically in adults with ADHD... Read more...
ADHD in Women: The Diagnosis That Comes Late
Girls are diagnosed with ADHD at roughly half the rate of boys, and women are often diagnosed a decade or more after their symptoms first appeared.1 That gap isn't because ADHD is rarer in women — it's because the condition was studied and defined mostly by watching hyperactive young boys, and a lot of women simply don't look like that. Inattentive-type ADHD, which is more common in girls and women, doesn't disrupt a classroom or a meeting the way hyperactive-impulsive ADHD does, so it doesn't get flagged.2 Add years of... Read more...
Cognitive Support vs. Momentous Brain Drive: Full Ingredient and Dose Comparison — Proco
Cognitive Support vs. Momentous Brain Drive: Full Ingredient and Dose Comparison
An honest, label-to-label comparison of what's actually dosed and disclosed on each product's Supplement Facts panel. Read more...
Capsules vs. Gummies: Does Format Actually Matter for Absorption? — Proco
Capsules vs. Gummies: Does Format Actually Matter for Absorption?
The short, honest answer: once a supplement actually breaks down in your digestive tract, your gut absorbs most nutrients about the same way regardless of whether they arrived in a... Read more...
Best Supplements for Focus While Working From Home — Proco
Best Supplements for Focus While Working From Home
The honest answer: no supplement fixes home-office focus on its own, and anyone telling you otherwise is selling harder than the evidence supports. The two biggest levers are structural, not... Read more...
Rhodiola vs. Ashwagandha — Proco
Rhodiola vs. Ashwagandha: Which Stress Botanical Fits Which Problem
Rhodiola and ashwagandha aren't interchangeable ‘adaptogens.’ One is evidenced for acute fatigue within days; the other for chronic, cortisol-driven stress over weeks. Here's the comparison. Read more...
Magnesium L-Threonate for Focus and Memory: Why We Use Glycinate Instead, For Now — Proco
Magnesium L-Threonate for Focus and Memory: Why We Use Glycinate Instead, For Now
Threonate is marketed on a blood-brain-barrier cognition claim glycinate doesn't make. Here's the actual human trial evidence, and why Proco still ships glycinate today. Read more...
Lion's Mane and Nerve Growth Factor — Proco
Lion's Mane and Nerve Growth Factor: What the Evidence Actually Shows
Lion's Mane's NGF mechanism is real in the lab. In humans, four small trials (18-41 people each) show a thin, mixed signal — here's what they actually found. Read more...
How to Fall Back Asleep After Waking at 3am — Proco
How to Fall Back Asleep After Waking at 3am
Waking at 3am is common and often normal. Here's what the evidence says about why it happens, the single most evidence-backed way to fall back asleep, and where melatonin, magnesium... Read more...
Proco vs. Onnit Alpha Brain — Ingredient-by-Ingredient
Proco vs. Onnit Alpha Brain: Ingredient-by-Ingredient
Alpha Brain folds most of its actives into three proprietary blends. Cognitive Support lists all nine of its actives individually but hasn't published doses yet. Here's the honest, factual side-by-side. Read more...
NREM vs REM Sleep: What Actually Happens in Each Stage — Proco
NREM vs REM Sleep: What Actually Happens in Each Stage
Sleep isn't one state — it's four stages your brain cycles through all night. Here's what N1, N2, N3 and REM actually do, how insomnia disrupts that pattern, and where... Read more...
Proco vs. Mind Lab Pro — What's Actually Disclosed
Proco vs. Mind Lab Pro: What's Actually Disclosed
Mind Lab Pro discloses a dose for all 11 of its nootropics. Cognitive Support lists 9 actives individually but doesn't yet. Here's the honest, ingredient-by-ingredient comparison. Read more...
When Brain Fog Needs a Doctor, Not a Supplement — Proco
When Brain Fog Needs a Doctor, Not a Supplement
We sell a cognitive support supplement, and we still think this needs saying: four real, treatable medical causes of brain fog worth ruling out first — thyroid, anemia, sleep apnea,... Read more...
The Placebo Effect in Supplements — Proco
The Placebo Effect in Supplements: What It Actually Means
Expecting a supplement to work changes how it feels to work — sometimes almost as much as the ingredient itself. Here's the actual research, and why it's the real reason... Read more...
Creatine and Women — Proco
Creatine and Women: What the 2025 Research Actually Adds
A 2025 JISSN review pulls together what's specifically known about creatine across the menstrual cycle, pregnancy, and menopause — an evidence base that's historically been almost entirely male. Read more...
Long COVID Brain Fog — Proco
Long COVID Brain Fog: Scientists Found What Causes It
An October 2025 PET imaging study identified a measurable biological marker — AMPA receptor density — that tracks with long COVID brain fog severity, turning a hard-to-validate symptom into a... Read more...
Daylight Saving Time and Sleep — Proco
Daylight Saving Time and Sleep: What Actually Happens to Your Body
Clocks change in early November. Here's what the data actually shows: the spring transition costs real sleep and a measurable heart-attack risk bump; the fall transition is comparatively low-stakes. Read more...
Shorter Days, Different Mood — Proco
Shorter Days, Different Mood: What the Brain Science Actually Shows
A December 2025 Nature Communications study used 7 Tesla brain imaging to find a real, light-sensitive amygdala mechanism behind seasonal mood changes — and why light therapy actually works. Read more...
Caffeine and Supplements During Pregnancy and Breastfeeding — Proco
Caffeine and Supplements During Pregnancy and Breastfeeding
Pregnancy and breastfeeding change the safety calculus on caffeine, melatonin, creatine, omega-3 and magnesium. Here's the exact guidance, product by product. Read more...
Nature, Attention, and the Brain — Proco
Nature, Attention, and the Brain: Does Time Outside Actually Restore Focus?
Attention Restoration Theory is the actual research framework behind "go for a walk, it'll help you focus." Here's what the systematic reviews and meta-analyses actually found. Read more...
Dopamine Detox: What Screen Time Actually Does to Focus — Proco
"Dopamine Detox": What Screen Time Actually Does to Focus
"Dopamine detox" oversimplifies the neuroscience. The real, well-studied effect behind why your phone hurts your focus is different — and more actionable. Read more...
Adult ADHD or Burnout? — Proco
Adult ADHD or Burnout? How to Actually Tell the Difference
Trouble focusing and mental exhaustion show up in both adult ADHD and burnout. Here's what clinically distinguishes them — and why the distinction actually matters. Read more...
Postpartum Brain Fog: What the Research Actually Says — Proco
Postpartum Brain Fog: What the Research Actually Says
"Mom brain" is real, documented, and has a name — matrescence. Here's what the research on pregnancy, postpartum cognition, and brain structure actually shows. Read more...
Moderate Drinking and Your Brain — Proco
Moderate Drinking and Your Brain: What New Research Actually Shows
A 2025 dose-response meta-analysis of 20 cohort studies revisits the old "a glass of wine is good for your brain" claim — and the protective effect doesn't hold up once... Read more...
Why You Crash After Lunch — Proco
Why You Crash After Lunch: Blood Sugar and the Afternoon Slump
The 2:30pm wall isn't just tiredness — trials show the shape of your post-meal glucose curve tracks with afternoon cognitive performance. Here's what actually helps. Read more...
Perimenopause Brain Fog: The Real Mechanism — Proco
Perimenopause Brain Fog: What's Actually Happening in the Brain
The direct estradiol mechanism behind perimenopause brain fog, and what current research and clinical guidance actually recommend. Read more...
What Probiotics Can and Can't Do for Mood and Focus — Proco
What Probiotics Can (and Can't) Do for Mood and Focus
The real gut-brain axis research, why most commercial probiotics aren't backed by it, and why we don't have a Proco probiotic yet. Read more...
Proco vs Generic Brain Blend — Proco
Proco vs. a Generic “Brain Blend”: What's Actually Different?
Proprietary blends can legally hide individual ingredient doses. Here's the structural difference between that, a generic multivitamin, and where Cognitive Support stands today — gaps included. Read more...
How Much Caffeine Is in Cognitive Support — Proco
How Much Caffeine Is Actually in Cognitive Support?
Cognitive Support's caffeine dose isn't on the label yet — here's the honest reason why, plus real reference points from coffee, tea, and energy drinks so you can plan your... Read more...