We haven't solved why some people experience severe reactions to vaccines while most don't.
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Health & Biology
Vaccines are safe and effective for the vast majority of people, but a small number experience severe reactions for reasons not yet fully understood. Better prediction of who's at risk could make vaccination even safer.
Team Humans Club. (2026). Problem WS00546: We haven't solved why some people experience severe reactions to vaccines while most don't.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=546
We can't yet fully cure chronic sinus infections that don't respond to standard antibiotics or surgery.
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Health & Biology
Some patients with chronic sinusitis continue experiencing symptoms even after surgical intervention, suggesting current treatments don't address every underlying cause. A more complete understanding and treatment approach remains needed.
Team Humans Club. (2026). Problem WS00545: We can't yet fully cure chronic sinus infections that don't respond to standard antibiotics or surgery.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=545
We don't have a widely accessible way to detect and treat postpartum thyroid dysfunction early.
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Health & Biology
Thyroid problems after childbirth can cause fatigue, mood changes, and other symptoms that are sometimes mistaken for normal postpartum adjustment, delaying diagnosis. Routine, accessible screening remains inconsistently practiced.
Team Humans Club. (2026). Problem WS00544: We don't have a widely accessible way to detect and treat postpartum thyroid dysfunction early.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=544
We haven't found a reliable way to prevent hospital readmissions for chronic disease patients after discharge.
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Health & Biology
Many patients with chronic conditions end up back in the hospital shortly after being discharged, often due to gaps in follow-up care rather than a failure of the original treatment. Better post-discharge support remains an unresolved healthcare system issue.
Team Humans Club. (2026). Problem WS00543: We haven't found a reliable way to prevent hospital readmissions for chronic disease patients after discharge.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=543
We can't yet fully explain why certain populations are more genetically susceptible to specific diseases.
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Health & Biology
Some diseases occur far more frequently within certain populations due to genetic factors that aren't yet fully mapped or understood. Filling this knowledge gap could lead to more targeted prevention and treatment.
Team Humans Club. (2026). Problem WS00542: We can't yet fully explain why certain populations are more genetically susceptible to specific diseases.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=542
We don't have an effective way to prevent the recurrence of blood clots in patients prone to them.
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Health & Biology
Patients who've had one dangerous blood clot are at ongoing risk of another, and current prevention relies mainly on long-term blood thinners that carry their own risks. A more targeted, lower-risk prevention method remains needed.
Team Humans Club. (2026). Problem WS00541: We don't have an effective way to prevent the recurrence of blood clots in patients prone to them.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=541
We haven't solved how to treat chronic pain in cancer survivors after treatment has ended.
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Health & Biology
Many cancer survivors continue to experience pain long after their cancer treatment concludes, and this pain is often undertreated because it's assumed to have resolved along with the disease. Better long-term pain management for survivors remains an overlooked need.
Team Humans Club. (2026). Problem WS00540: We haven't solved how to treat chronic pain in cancer survivors after treatment has ended.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=540
We can't yet fully prevent the long-term effects of childhood trauma on adult physical health.
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Health & Biology
Research shows a strong link between childhood trauma and adult physical illness, but effective, scalable prevention and early intervention remain limited. Closing this gap could improve both mental and physical health outcomes across entire populations.
Team Humans Club. (2026). Problem WS00539: We can't yet fully prevent the long-term effects of childhood trauma on adult physical health.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=539
We don't have a scalable solution to detect and treat rare genetic diseases affordably in most of the world.
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Health & Biology
Diagnosing rare genetic conditions often requires expensive genetic testing that remains inaccessible in much of the world, delaying or entirely preventing diagnosis. Making this technology affordable and widely available remains unresolved.
Team Humans Club. (2026). Problem WS00538: We don't have a scalable solution to detect and treat rare genetic diseases affordably in most of the world.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=538
We haven't found an effective way to prevent the muscle wasting caused by long hospital stays.
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Health & Biology
Extended time in a hospital bed, especially in intensive care, can cause significant muscle loss that affects recovery and long-term function. Better prevention methods during hospitalization remain underdeveloped.
Team Humans Club. (2026). Problem WS00537: We haven't found an effective way to prevent the muscle wasting caused by long hospital stays.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=537
We can't yet fully explain the biological causes of most cases of unexplained infertility.
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Health & Biology
A meaningful share of infertility cases have no identifiable cause even after thorough testing, leaving both patients and doctors without clear answers or targeted treatment. Understanding these cases better remains an open research priority.
Team Humans Club. (2026). Problem WS00536: We can't yet fully explain the biological causes of most cases of unexplained infertility.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=536
We don't have a widely available, effective treatment for chronic hives that don't respond to standard medication.
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Health & Biology
A subset of patients with chronic hives don't respond well to typical antihistamine treatment, leaving them with persistent, disruptive symptoms and few further options. More effective alternatives remain limited.
Team Humans Club. (2026). Problem WS00535: We don't have a widely available, effective treatment for chronic hives that don't respond to standard medication.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=535
We haven't solved why some children develop severe allergic asthma while others with similar exposure don't.
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Health & Biology
Childhood asthma rates have risen substantially, but why some children develop severe, persistent symptoms while others exposed to similar triggers don't remains only partly understood. A clearer answer could improve both prevention and treatment.
Team Humans Club. (2026). Problem WS00534: We haven't solved why some children develop severe allergic asthma while others with similar exposure don't.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=534
We can't yet fully treat chronic Lyme disease symptoms that persist after standard antibiotic treatment.
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Health & Biology
Some patients continue experiencing symptoms long after completing standard treatment for Lyme disease, and doctors disagree on both the cause and the best way to treat this lingering illness. Resolving this uncertainty remains a significant unmet need.
Team Humans Club. (2026). Problem WS00533: We can't yet fully treat chronic Lyme disease symptoms that persist after standard antibiotic treatment.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=533
We don't have an effective way to prevent the recurrence of depression after a first episode.
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Health & Biology
Many people who experience one episode of depression go on to experience another, and current treatments don't reliably prevent this recurrence. Better long-term prevention strategies remain an important gap in mental health care.
Team Humans Club. (2026). Problem WS00532: We don't have an effective way to prevent the recurrence of depression after a first episode.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=532
We haven't found a reliable way to detect early-stage stomach cancer before it becomes advanced.
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Health & Biology
Stomach cancer often causes no clear symptoms until it has progressed significantly, particularly in regions without routine screening programs. Earlier, more accessible detection could substantially improve survival outcomes.
Team Humans Club. (2026). Problem WS00531: We haven't found a reliable way to detect early-stage stomach cancer before it becomes advanced.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=531
We can't yet fully prevent the birth defects caused by certain infections during pregnancy.
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Health & Biology
Infections like Zika or cytomegalovirus can cause serious birth defects if contracted during pregnancy, and prevention options remain limited in many regions. Better vaccines or protective treatments remain needed to close this gap.
Team Humans Club. (2026). Problem WS00530: We can't yet fully prevent the birth defects caused by certain infections during pregnancy.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=530
We don't have an effective way to reverse the cartilage loss that causes osteoarthritis.
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Health & Biology
Osteoarthritis treatment currently focuses on managing pain and preserving remaining function rather than restoring lost cartilage. A regenerative treatment could transform care for one of the most common causes of chronic pain in older adults.
Team Humans Club. (2026). Problem WS00529: We don't have an effective way to reverse the cartilage loss that causes osteoarthritis.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=529
We haven't solved how to make organ transplants available to more patients without relying solely on donor scarcity.
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Health & Biology
Thousands of patients remain on transplant waiting lists that never resolve in time, largely because donor organ supply can't keep pace with demand. Alternatives like lab-grown organs remain the most promising but still unrealized solution.
Team Humans Club. (2026). Problem WS00528: We haven't solved how to make organ transplants available to more patients without relying solely on donor scarcity.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=528
We can't yet fully explain why chronic fatigue sometimes follows viral infections long after the virus is gone.
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Health & Biology
Post-viral fatigue syndromes, including long COVID, leave some patients exhausted for months or years after the initial infection has cleared, and the biological mechanism remains unclear. Understanding this could unlock treatment for a currently poorly understood condition.
Team Humans Club. (2026). Problem WS00527: We can't yet fully explain why chronic fatigue sometimes follows viral infections long after the virus is gone.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=527