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Health, fitness, and disease-risk research

Exercise, diet, sleep, obesity, biomarkers, medication, and lifestyle-related health risks.

6,880 stories · 74 in 30 days · Updated Sep 28, 2026

The pace of conversation

Posts per month

2020-01: 100 posts2020-02: 73 posts2020-03: 65 posts2020-04: 54 posts2020-05: 52 posts2020-06: 64 posts2020-07: 53 posts2020-08: 73 posts2020-09: 59 posts2020-10: 66 posts2020-11: 83 posts2020-12: 73 posts2021-01: 70 posts2021-02: 59 posts2021-03: 54 posts2021-04: 51 posts2021-05: 66 posts2021-06: 71 posts2021-07: 80 posts2021-08: 58 posts2021-09: 72 posts2021-10: 64 posts2021-11: 64 posts2021-12: 65 posts2022-01: 88 posts2022-02: 75 posts2022-03: 64 posts2022-04: 63 posts2022-05: 66 posts2022-06: 93 posts2022-07: 99 posts2022-08: 105 posts2022-09: 100 posts2022-10: 81 posts2022-11: 83 posts2022-12: 91 posts2023-01: 96 posts2023-02: 118 posts2023-03: 102 posts2023-04: 81 posts2023-05: 80 posts2023-06: 88 posts2023-07: 78 posts2023-08: 117 posts2023-09: 113 posts2023-10: 98 posts2023-11: 87 posts2023-12: 102 posts2024-01: 90 posts2024-02: 117 posts2024-03: 129 posts2024-04: 97 posts2024-05: 104 posts2024-06: 104 posts2024-07: 83 posts2024-08: 102 posts2024-09: 91 posts2024-10: 97 posts2024-11: 92 posts2024-12: 98 posts2025-01: 110 posts2025-02: 75 posts2025-03: 81 posts2025-04: 112 posts2025-05: 95 posts2025-06: 91 posts2025-07: 106 posts2025-08: 117 posts2025-09: 124 posts2025-10: 116 posts2025-11: 113 posts2025-12: 100 posts2026-01: 99 posts2026-02: 109 posts2026-03: 48 posts2026-04: 73 posts2026-05: 71 posts2026-06: 56 posts2026-07: 73 posts2026-08: 81 posts2026-09: 69 posts
2020-012026-09

Posts per month · first and latest months may be partial.

01 / EXPLORE THROUGH TIME

Timeline

Start with the latest. Scroll back through time, or zoom in for more.

Year by yearUp to 5 stories per year
2026679 stories
Sleep regularity is a stronger predictor of mortality risk than sleep duration (2023)↗ academic.oup.com · HN · 410 comments · 759 points · Jul 15, 2026
Creatine raises brain energy levels and slows cognitive decline: study↗ thesciverse.org · HN · 375 comments · 531 points · May 31, 2026
Acetaminophen vs. ibuprofen↗ asteriskmag.com · HN · 483 comments · 706 points · Apr 20, 2026
Vitamin D and Omega-3 have a larger effect on depression than antidepressants↗ blog.ncase.me · HN · 641 comments · 954 points · Jan 29, 2026
Sugar industry influenced researchers and blamed fat for CVD (2016)↗ ucsf.edu · HN · 501 comments · 797 points · Jan 07, 2026
20251,240 stories
Ticker: Don't die of heart disease↗ myticker.com · HN · 488 comments · 600 points · Nov 08, 2025
Inflammation now predicts heart disease more strongly than cholesterol↗ empirical.health · HN · 381 comments · 647 points · Sep 30, 2025
Sleep all comes down to the mitochondria↗ science.org · HN · 308 comments · 639 points · Jul 30, 2025
Bacteria (and their metabolites) and depression↗ science.org · HN · 200 comments · 442 points · Jan 29, 2025
Type 2 Diabetes and cardiovascular disease attributable to sugar beverages↗ nature.com · HN · 384 comments · 432 points · Jan 07, 2025
20241,204 stories
Weight-loss drug found to shrink muscle in mice, human cells↗ ualberta.ca · HN · 444 comments · 372 points · Nov 20, 2024
Sleep regularity is a stronger predictor of mortality than sleep duration (2023)↗ academic.oup.com · HN · 247 comments · 386 points · Nov 01, 2024
Commonly used arm positions can overestimate blood pressure readings: study↗ medicalxpress.com · HN · 230 comments · 331 points · Oct 14, 2024
Viagra improves brain blood flow and could help to prevent dementia↗ ox.ac.uk · HN · 271 comments · 395 points · Jun 08, 2024
Cardio fitness is a strong, consistent predictor of morbidity and mortality↗ bjsm.bmj.com · HN · 532 comments · 490 points · May 03, 2024
20231,160 stories
Not All Exercise Is Beneficial: The Physical Activity Paradox Explained↗ medscape.com · HN · 38 comments · 65 points · Dec 26, 2023
Climbing 50 steps a day can cut your risk of heart disease by 20%↗ news.tulane.edu · HN · 60 comments · 61 points · Nov 26, 2023
Effectiveness of physical activity for improving depression, anxiety, distress↗ bjsm.bmj.com · HN · 27 comments · 60 points · Sep 06, 2023
Dementia risk linked to blood-protein imbalance in middle age↗ nature.com · HN · 11 comments · 55 points · Jul 21, 2023
Reduced cancer mortality with daily Vitamin D intake↗ dkfz.de · HN · 10 comments · 58 points · May 09, 2023
20221,008 stories
5-min breathing workout lowers blood pressure as much as exercise, drugs (2021)↗ colorado.edu · HN · 234 comments · 582 points · Apr 14, 2022
Sounding the alarm: How noise hurts the heart (2021)↗ knowablemagazine.org · HN · 511 comments · 597 points · Apr 11, 2022
The Uselessness of Phenylephrine↗ science.org · HN · 592 comments · 799 points · Mar 30, 2022
Soybean oil affects hypothalamus, causes genetic changes in mice: study (2020)↗ universityofcalifornia.edu · HN · 449 comments · 633 points · Feb 24, 2022
Multiple Sclerosis Causality↗ science.org · HN · 244 comments · 635 points · Jan 14, 2022
2021774 stories
Challenges in the diagnosis of magnesium status↗ ncbi.nlm.nih.gov · HN · 391 comments · 521 points · Jun 27, 2021
Working over 55 hours a week associated with higher risk of stroke, heart attack↗ bbc.co.uk · HN · 170 comments · 362 points · May 17, 2021
Regular afternoon naps linked to improved cognitive function↗ sciencefocus.com · HN · 151 comments · 434 points · Jan 30, 2021
Lack of sleep, stress can lead to symptoms resembling concussion↗ news.osu.edu · HN · 134 comments · 357 points · Jan 24, 2021
Workaholism leads to health problems, work addiction risk depends on occupation↗ hse.ru · HN · 239 comments · 445 points · Jan 13, 2021
2020815 stories
Less screen time and more sleep critical for preventing depression↗ westernsydney.edu.au · HN · 141 comments · 439 points · Nov 13, 2020
Intermittent fasting from dawn to sunset induces anticancer response↗ pubmed.ncbi.nlm.nih.gov · HN · 364 comments · 552 points · Oct 30, 2020
If the heart is a muscle, why doesn't it ever get tired?↗ reddit.com · HN · 155 comments · 431 points · Mar 21, 2020
Caffeine boosts problem-solving ability but not creativity, study indicates↗ news.uark.edu · HN · 195 comments · 466 points · Mar 06, 2020
Study: Low Carb Diet May Prevent, Reverse Age-Related Effects Within the Brain↗ news.stonybrook.edu · HN · 328 comments · 429 points · Mar 06, 2020
Scroll through time ↕

02 / CATCH UP

The conversation now

Popular stories, with attention fading over roughly two weeks.

People hooked on vapes try a new way to quit: cigarettes↗ bloomberg.com · HN · 335 comments · 247 points · Sep 22, 2026
Show HN: Bodily Oddities↗ vester.si · HN · 216 comments · 341 points · Sep 10, 2026
Exercise intensity is associated with cardiometabolic health↗ cell.com · HN · 74 comments · 142 points · Sep 11, 2026
Semaglutide linked to lower predicted dementia risk↗ alz-journals.onlinelibrary.wiley.com · HN · 403 comments · 502 points · Aug 15, 2026
Peppermint oil reduces blood pressure by 8.48 mmHg in small study↗ journals.plos.org · HN · 108 comments · 231 points · Aug 24, 2026

03 / GO DEEPER

Follow your curiosity

Find a particular story, revisit a year, or see what resonated.

Highest rated · the last 30 days

Show HN: Bodily Oddities↗ vester.si · HN · 216 comments · 341 points · Sep 10, 2026
People hooked on vapes try a new way to quit: cigarettes↗ bloomberg.com · HN · 335 comments · 247 points · Sep 22, 2026
Exercise intensity is associated with cardiometabolic health↗ cell.com · HN · 74 comments · 142 points · Sep 11, 2026
Study: Blue light impairs the eye's ability to distinguish fine detail most↗ research.uga.edu · HN · 59 comments · 91 points · Aug 31, 2026
Resistance Training Prescription for Muscle Function, Hypertrophy in Health↗ pmc.ncbi.nlm.nih.gov · HN · 34 comments · 61 points · Sep 12, 2026
Study: A burst of "pink noise" may lead to more restorative sleep↗ news.mit.edu · HN · 1 comments · 20 points · Sep 10, 2026
Creatine improves muscle mass and cognitive function even without exercise↗ psypost.org · HN · 12 comments · 18 points · Sep 11, 2026
Long-term melatonin use linked to 90% higher heart failure risk↗ sciencedaily.com · HN · 5 comments · 15 points · Sep 07, 2026
Muscles talk to the brain to fight depression↗ nature.com · HN · 1 comments · 14 points · Sep 03, 2026
Which Diet Is Best to Lower Liver Fat and Improve Insulin Sensitivity?↗ nourishedbyscience.com · HN · 5 comments · 13 points · Sep 28, 2026

10 stories shown.

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