96 cited sources · last updated: September 10, 2026
The strongest evidence: meta-analyses, randomised controlled trials and official fact sheets from national health agencies.
Exercise During Pregnancy — FAQ
https://www.acog.org/womens-health/faqs/exercise-during-pregnancy
High Blood Pressure — Health Topic
https://www.heart.org/en/health-topics/high-blood-pressure
American Heart Association Recommendations for Physical Activity in Adults
https://www.heart.org/en/healthy-living/fitness/fitness-basics/aha-recs-for-physical-activity-in-adults
Hypothermia — Symptoms and Causes
https://www.mayoclinic.org/diseases-conditions/hypothermia/symptoms-causes/syc-20352682
Using Dietary Supplements Wisely
https://www.nccih.nih.gov/health/using-dietary-supplements-wisely
Ashwagandha — What You Need To Know
https://www.nccih.nih.gov/health/ashwagandha
Meditation and Mindfulness — What You Need To Know
https://www.nccih.nih.gov/health/meditation-and-mindfulness-what-you-need-to-know
Relaxation Techniques — What You Need To Know
https://www.nccih.nih.gov/health/relaxation-techniques-what-you-need-to-know
Healthy Sleep Habits
https://www.nhlbi.nih.gov/health/sleep-deprivation/healthy-sleep-habits
Time-restricted eating — research summary
https://www.niddk.nih.gov/health-information/diet-nutrition
I'm So Stressed Out! Fact Sheet
https://www.nimh.nih.gov/health/publications/so-stressed-out-fact-sheet
Alcohol's Effects on Health — Alcohol Facts and Statistics
https://www.niaaa.nih.gov/alcohols-effects-health/alcohol-topics/alcohol-facts-and-statistics
Exercise and Athletic Performance — Fact Sheet for Health Professionals
https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-HealthProfessional/
Dietary Supplements for Immune Function and Infectious Diseases
https://ods.od.nih.gov/factsheets/ImmuneFunction-HealthProfessional/
NIH Office of Dietary Supplements — Fact Sheets (all nutrients)
https://ods.od.nih.gov/factsheets/list-all/
Magnesium — Fact Sheet for Health Professionals
https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/
Multivitamin/Mineral Supplements — Fact Sheet for Health Professionals
https://ods.od.nih.gov/factsheets/MVMS-HealthProfessional/
Omega-3 Fatty Acids — Fact Sheet for Health Professionals
https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/
Vitamin D — Fact Sheet for Health Professionals
https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/
About Mental Health
https://www.cdc.gov/mental-health/about/index.html
Physical Activity Guidelines for Adults
https://www.cdc.gov/physical-activity-basics/guidelines/index.html
About Sleep and Your Health — Sleep Hygiene
https://www.cdc.gov/sleep/about_sleep/sleep_hygiene.html
Water and Healthier Drinks
https://www.cdc.gov/healthy-weight-growth/water-healthy-drinks/index.html
Spilling the Beans: How Much Caffeine Is Too Much?
https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much
Physical Activity Guidelines for Americans
https://health.gov/our-work/nutrition-physical-activity/physical-activity-guidelines
Healthy Diet — Fact Sheet
https://www.who.int/news-room/fact-sheets/detail/healthy-diet
Mental health at work
https://www.who.int/news-room/fact-sheets/detail/mental-health-at-work
Physical Activity — Fact Sheet
https://www.who.int/news-room/fact-sheets/detail/physical-activity
Sodium reduction (World Health Organization fact sheet)
https://www.who.int/news-room/fact-sheets/detail/salt-reduction
Primary literature published in peer-reviewed journals, indexed in PubMed.
Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed (Drake et al., J Clin Sleep Med 2013; PMID 24235903)
https://pubmed.ncbi.nlm.nih.gov/24235903/
International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation (Kreider et al. 2017; PMID 28615996)
https://pubmed.ncbi.nlm.nih.gov/28615996/
Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans (PNAS, 2014)
https://www.pnas.org/doi/10.1073/pnas.1322174111
PubMed — caffeine timing, adenosine and sleep architecture
https://pubmed.ncbi.nlm.nih.gov/?term=caffeine+timing+sleep+architecture+adenosine
PubMed — ochratoxin A and mycotoxins in coffee
https://pubmed.ncbi.nlm.nih.gov/?term=ochratoxin+A+mycotoxins+coffee
PubMed — cold-water immersion and cardiovascular risk
https://pubmed.ncbi.nlm.nih.gov/?term=cold+water+immersion+cardiovascular+risk
PubMed — deliberate cold exposure, norepinephrine and brown adipose tissue
https://pubmed.ncbi.nlm.nih.gov/?term=deliberate+cold+exposure+norepinephrine+brown+adipose+tissue
PubMed — creatine monohydrate supplementation: position stands and trials
https://pubmed.ncbi.nlm.nih.gov/?term=creatine+monohydrate+supplementation+position+stand+strength
PubMed — cyclic sighing and breathwork for mood and autonomic arousal
https://pubmed.ncbi.nlm.nih.gov/?term=cyclic+sighing+breathwork+mood+autonomic+arousal
PubMed — aerobic exercise, BDNF and cognitive performance
https://pubmed.ncbi.nlm.nih.gov/?term=aerobic+exercise+BDNF+cognition+meta-analysis
PubMed — dietary fibre intake, gut microbiome and cardiometabolic risk
https://pubmed.ncbi.nlm.nih.gov/?term=dietary+fiber+intake+gut+microbiome+cardiometabolic+risk
PubMed — self-myofascial release / foam rolling and recovery
https://pubmed.ncbi.nlm.nih.gov/?term=self-myofascial+release+foam+rolling+recovery
PubMed — glycine supplementation and sleep quality
https://pubmed.ncbi.nlm.nih.gov/?term=glycine+supplementation+sleep+quality
PubMed — gratitude interventions and wellbeing
https://pubmed.ncbi.nlm.nih.gov/?term=gratitude+intervention+wellbeing+randomized
PubMed — habit formation, automaticity and behaviour change
https://pubmed.ncbi.nlm.nih.gov/?term=habit+formation+automaticity+behavior+change
PubMed — intrinsically photosensitive retinal ganglion cells & circadian entrainment
https://pubmed.ncbi.nlm.nih.gov/?term=intrinsically+photosensitive+retinal+ganglion+cells+circadian+entrainment
PubMed — expressive writing and journaling for mental health
https://pubmed.ncbi.nlm.nih.gov/?term=expressive+writing+journaling+mental+health
PubMed — evening light exposure, melatonin suppression and sleep quality
https://pubmed.ncbi.nlm.nih.gov/?term=evening+light+exposure+melatonin+suppression+sleep+quality
PubMed — L-theanine, stress reactivity and attention
https://pubmed.ncbi.nlm.nih.gov/?term=l-theanine+stress+attention+randomized
PubMed — meditation, mindfulness and cortisol/stress markers
https://pubmed.ncbi.nlm.nih.gov/?term=meditation+mindfulness+cortisol+stress+randomized
PubMed — stretching, mobility and range of motion
https://pubmed.ncbi.nlm.nih.gov/?term=stretching+mobility+range+of+motion+meta-analysis
PubMed — morning bright light exposure, circadian phase and alertness
https://pubmed.ncbi.nlm.nih.gov/?term=morning+bright+light+exposure+circadian+phase+shift+alertness
PubMed — nature exposure and stress/cognitive outcomes
https://pubmed.ncbi.nlm.nih.gov/?term=nature+exposure+stress+cognitive+outcomes+meta-analysis
PubMed — NSDR / yoga nidra and non-sleep deep rest
https://pubmed.ncbi.nlm.nih.gov/?term=yoga+nidra+non-sleep+deep+rest+dopamine+stress
PubMed — omega-3 fatty acids and cardiovascular outcomes
https://pubmed.ncbi.nlm.nih.gov/?term=omega-3+fatty+acids+cardiovascular+outcomes+meta-analysis
PubMed — post-meal walking and glycaemic control
https://pubmed.ncbi.nlm.nih.gov/?term=post-meal+walking+glycemic+control
PubMed — photobiomodulation / red light therapy: mechanisms and trials
https://pubmed.ncbi.nlm.nih.gov/?term=photobiomodulation+red+light+therapy+mitochondrial
PubMed — resistance training, strength and all-cause mortality
https://pubmed.ncbi.nlm.nih.gov/?term=resistance+training+strength+all-cause+mortality
PubMed — sauna bathing, cardiovascular risk and heat shock proteins
https://pubmed.ncbi.nlm.nih.gov/?term=sauna+bathing+cardiovascular+risk+heat+shock+proteins
PubMed — slow paced breathing, heart rate variability and stress
https://pubmed.ncbi.nlm.nih.gov/?term=slow+paced+breathing+heart+rate+variability+stress
PubMed — cutaneous vitamin D synthesis and UVB exposure
https://pubmed.ncbi.nlm.nih.gov/?term=cutaneous+vitamin+D+synthesis+UVB+exposure
PubMed — vitamin D status, bone health and supplementation
https://pubmed.ncbi.nlm.nih.gov/?term=vitamin+d+supplementation+bone+health+meta-analysis
PubMed — vitamin K2, arterial calcification and bone metabolism
https://pubmed.ncbi.nlm.nih.gov/?term=vitamin+K2+arterial+calcification+bone+metabolism
PubMed — cardiorespiratory fitness (VO2 max) and longevity
https://pubmed.ncbi.nlm.nih.gov/?term=cardiorespiratory+fitness+VO2max+all-cause+mortality
PubMed — moderate-intensity continuous training and mitochondrial adaptation
https://pubmed.ncbi.nlm.nih.gov/?term=moderate+intensity+continuous+training+mitochondrial+biogenesis
Syntheses and clinical guidance from academic medical centres and professional societies.
Breathing Exercises for Better Lung Health
https://www.lung.org/lung-health-diseases/wellness/breathing-exercises
Healthy Eating Plate — The Nutrition Source
https://www.hsph.harvard.edu/nutritionsource/healthy-eating-plate/
The Nutrition Source — Harvard T.H. Chan School of Public Health
https://www.hsph.harvard.edu/nutritionsource/
Olive Oil — The Nutrition Source
https://www.hsph.harvard.edu/nutritionsource/food-features/olive-oil/
Protein — The Nutrition Source
https://www.hsph.harvard.edu/nutritionsource/what-should-you-eat/protein/
Alcohol and Sleep — Sleep Foundation
https://www.sleepfoundation.org/nutrition/alcohol-and-sleep
Caffeine and Sleep — Sleep Foundation
https://www.sleepfoundation.org/nutrition/caffeine-and-sleep
Circadian Rhythm — Sleep Foundation
https://www.sleepfoundation.org/circadian-rhythm
Sleep Hygiene — Sleep Foundation
https://www.sleepfoundation.org/sleep-hygiene
The primary description of a named method, written by the person who created it. Never used alone for a medical claim.
Atomic Habits — James Clear
https://jamesclear.com/atomic-habits
Blueprint — Bryan Johnson's public protocol
https://protocol.bryanjohnson.com/
Cal Newport — Deep Work and digital minimalism
https://calnewport.com/
David Goggins — official site
https://davidgoggins.com/
Dr. Joe Dispenza — official site
https://drjoedispenza.com/
FoundMyFitness — Dr. Rhonda Patrick
https://www.foundmyfitness.com/
Deep Work — Cal Newport
https://calnewport.com/books/deep-work/
Huberman Lab — official protocols and episode library
https://hubermanlab.com/
Isha Foundation — Sadhguru's yogic practices
https://isha.sadhguru.org/
James Clear — habit formation resources
https://jamesclear.com/
Jocko Podcast - official site (Jocko Willink)
https://jockopodcast.com/
The Sleep Diplomat — Prof. Matthew Walker
https://www.sleepdiplomat.com/
Naval Ravikant — official site and podcast archive
https://nav.al/
Peter Attia, MD — Early Medical and The Drive
https://peterattiamd.com/
The Blog of Author Tim Ferriss
https://tim.blog/
Tony Robbins — official site
https://www.tonyrobbins.com/
Wim Hof Method — official breathing and cold-exposure method
https://www.wimhofmethod.com/
Context and background only. Never used on its own to support a health claim.
PubMed — attention restoration, cognitive load and focused work
https://pubmed.ncbi.nlm.nih.gov/?term=attention+restoration+cognitive+load+focused+work
PubMed — earthing/grounding: available studies (limited evidence)
https://pubmed.ncbi.nlm.nih.gov/?term=earthing+grounding+human+health
PubMed — hydrogen-rich water: available trials (limited evidence)
https://pubmed.ncbi.nlm.nih.gov/?term=hydrogen-rich+water+clinical+trial
PubMed — mouth taping, nasal breathing and sleep-disordered breathing
https://pubmed.ncbi.nlm.nih.gov/?term=mouth+taping+nasal+breathing+sleep
PubMed — oil pulling and oral hygiene outcomes
https://pubmed.ncbi.nlm.nih.gov/?term=oil+pulling+oral+hygiene+plaque+gingivitis
PubMed — ultra-endurance training load and health outcomes
https://pubmed.ncbi.nlm.nih.gov/?term=ultra-endurance+training+load+health+outcomes
Built in pure SwiftUI with SwiftData. Zero latency, 100% offline-ready, no cloud tracking, interactive lock-screen widgets, and scientific habit friction scoring.
Your biological routines and data never touch external servers.
Sub-millisecond habit toggles and timeline scheduling with SwiftData.
Intelligently balances high-willpower tasks with zero-effort micro-habits.
