World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
133
Citations
64766
World Ranking
2233
National Ranking
1259

Michael R. Irwin publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Michael R. Irwin sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 562 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Michael R. Irwin D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Michael R. Irwin sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 133 D-Index — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Research.com Recognitions

  • 2023 - Martica Hall Sleep Medicine Award, American Psychosomatic Society
  • 2020 - Frisca L Yan Go Award in Sleep Medicine, UCLA
  • 2017 - Charlton Award,Tufts University
  • 2017 - Leader in Medicine, American Health Council
  • 2010 - Lauda Wellness Award
  • 2008 - Norman Cousins Research Award, Psychoneuroimmunology Research Society
  • 2008 - Distinguished Fellow, American Psychiatric Association
  • 1962 - The Morrison Award, American Society of Animal Science
  • 1950 - Member of the National Academy of Sciences

Overview

Michael R. Irwin is affiliated with the University of California, Los Angeles in the United States. Their research spans several fields primarily focused on neuroscience, medicine, and psychology. Within these broad domains, their work engages deeply in subfields such as experimental and cognitive psychology, biological psychiatry, behavioral neuroscience, cognitive neuroscience, and clinical psychology.

The scientist's main topics of study include:

  • Tryptophan and brain disorders
  • Sleep and related disorders
  • Stress responses and cortisol
  • Sleep and wakefulness research
  • Circadian rhythm and melatonin
  • Cancer survivorship and care
  • Cancer-related cognitive impairment studies

Michael R. Irwin has contributed to numerous publications featured in well-known venues, frequently publishing in:

  • Brain Behavior and Immunity
  • Biological Psychiatry
  • Translational Psychiatry
  • Brain Behavior & Immunity - Health
  • Psychoneuroendocrinology

Among their recent papers are:

  • "Prevention of Incident and Recurrent Major Depression in Older Adults With Insomnia," 2021, JAMA Psychiatry
  • "Anti-inflammatory effects of melatonin: A systematic review and meta-analysis of clinical trials," 2021, Brain Behavior and Immunity
  • "Effects of Tai Chi or Exercise on Sleep in Older Adults With Insomnia," 2021, JAMA Network Open
  • "Effects of Tai Chi or Conventional Exercise on Central Obesity in Middle-Aged and Older Adults," 2021, Annals of Internal Medicine
  • "Testing a mindfulness meditation mobile app for the treatment of sleep-related symptoms in adults with sleep disturbance: A randomized controlled trial," 2021, PLoS ONE

Frequent collaborators include Julienne E. Bower, Steve W. Cole, Naomi I. Eisenberger, Elizabeth C. Breen, and Patricia A. Ganz. These coauthors have worked extensively together, indicating ongoing research partnerships.

Michael R. Irwin's career includes recognitions such as The Morrison Award from the American Society of Animal Science in 1962 and membership in the National Academy of Sciences since 1950.

Best Publications

  • A vaccine to prevent herpes zoster and postherpetic neuralgia in older adults.

    M. N. Oxman;M. N. Oxman;M. J. Levin;G. R. Johnson;K. E. Schmader

  • From Stress to Inflammation and Major Depressive Disorder: A Social Signal Transduction Theory of Depression

    George M. Slavich;Michael R. Irwin

  • Sleep Disturbance, Sleep Duration, and Inflammation: A Systematic Review and Meta-Analysis of Cohort Studies and Experimental Sleep Deprivation

    Michael R. Irwin;Richard G. Olmstead;Judith E. Carroll

  • Screening for depression in the older adult: criterion validity of the 10-item Center for Epidemiological Studies Depression Scale (CES-D)

    Michael Irwin;Kamal Haydari Artin;Michael N. Oxman

  • Why Sleep Is Important for Health: A Psychoneuroimmunology Perspective

    Michael R. Irwin

  • Depressive disorders and immunity: 20 years of progress and discovery.

    Michael R. Irwin;Andrew H. Miller

  • Sleep deprivation and activation of morning levels of cellular and genomic markers of inflammation

    Michael R. Irwin;Minge Wang;Capella O. Campomayor;Alicia Collado-Hidalgo

  • Reciprocal regulation of the neural and innate immune systems.

    Michael R. Irwin;Steven W. Cole

  • Mindfulness-Based Stress Reduction training reduces loneliness and pro-inflammatory gene expression in older adults: A small randomized controlled trial

    J. David Creswell;Michael R. Irwin;Lisa J. Burklund;Matthew D. Lieberman

  • Neuroendocrine-Immune Mechanisms of Behavioral Comorbidities in Patients With Cancer

    Andrew H. Miller;Sonia Ancoli-Israel;Julienne E. Bower;Lucile Capuron

  • Partial night sleep deprivation reduces natural killer and cellular immune responses in humans.

    M Irwin;J McClintick;C Costlow;M Fortner

  • Comparative meta-analysis of behavioral interventions for insomnia and their efficacy in middle-aged adults and in older adults 55+ years of age.

    Michael R. Irwin;Jason C. Cole;Perry M. Nicassio

  • Inflammation-induced anhedonia: endotoxin reduces ventral striatum responses to reward.

    Naomi I. Eisenberger;Elliot T. Berkman;Tristen K. Inagaki;Lian T. Rameson

  • Sleep and inflammation: partners in sickness and in health.

    Michael R. Irwin

  • Comparison of Cognitive Behavioral and Mindfulness Meditation Interventions on Adaptation to Rheumatoid Arthritis for Patients With and Without History of Recurrent Depression

    Alex J. Zautra;Mary C. Davis;John W. Reich;Perry Nicassario

  • Inflammation and Behavioral Symptoms After Breast Cancer Treatment: Do Fatigue, Depression, and Sleep Disturbance Share a Common Underlying Mechanism?

    Julienne E. Bower;Patricia A. Ganz;Michael R. Irwin;Lorna Kwan

  • Mindfulness Meditation and Improvement in Sleep Quality and Daytime Impairment Among Older Adults With Sleep Disturbances: A Randomized Clinical Trial

    David S. Black;Gillian A. O’Reilly;Richard G. Olmstead;Elizabeth C. Breen

  • To assess, to control, to exclude: Effects of biobehavioral factors on circulating inflammatory markers

    Mary-Frances O'Connor;Julie E Bower;Julie E Bower;Hyong Jin Cho;J David Creswell

  • Effects of sleep and sleep deprivation on interleukin-6, growth hormone, cortisol, and melatonin levels in humans.

    Laura Redwine;Richard L. Hauger;J. Christian Gillin;Michael Irwin

  • Sleep Loss Activates Cellular Inflammatory Signaling

    Michael R. Irwin;Minge Wang;Denise Ribeiro;Hyong Jin Cho

Frequent Co-Authors

Richard G. Olmstead
Richard G. Olmstead University of Washington
Elizabeth C. Breen
Elizabeth C. Breen University of California, Los Angeles
Julienne E. Bower
Julienne E. Bower University of California, Los Angeles
Marc A. Schuckit
Marc A. Schuckit University of California, San Diego
Steve W. Cole
Steve W. Cole University of California, Los Angeles
Naomi I. Eisenberger
Naomi I. Eisenberger University of California, Los Angeles
Patricia A. Ganz
Patricia A. Ganz University of California, Los Angeles
Teresa E. Seeman
Teresa E. Seeman University of California, Los Angeles
Michael N. Oxman
Michael N. Oxman University of California, San Diego
Andrew J. Fuligni
Andrew J. Fuligni University of California, Los Angeles

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