We haven't solved how to prevent the recurrence of shingles in people who've already had it once.
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Health & Biology
People who've had shingles once remain at risk of developing it again, and current prevention through vaccination isn't uniformly accessible or effective for every at-risk group. A more comprehensive prevention approach remains needed.
Team Humans Club. (2026). Problem WS00606: We haven't solved how to prevent the recurrence of shingles in people who've already had it once.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=606
We can't yet fully prevent the digestive issues that sometimes follow long-term antibiotic use.
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Health & Biology
Extended antibiotic use can disrupt gut bacteria in ways that cause lasting digestive problems for some patients, even after the antibiotics are no longer needed. Better protection of the gut microbiome during necessary antibiotic treatment remains undeveloped.
Team Humans Club. (2026). Problem WS00605: We can't yet fully prevent the digestive issues that sometimes follow long-term antibiotic use.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=605
We don't have an effective, scalable way to detect gestational diabetes earlier in pregnancy in low-resource settings.
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Health & Biology
Standard gestational diabetes screening often happens later in pregnancy and can be logistically difficult to access in under-resourced areas, delaying diagnosis and management. Earlier, more accessible screening remains an unmet need.
Team Humans Club. (2026). Problem WS00604: We don't have an effective, scalable way to detect gestational diabetes earlier in pregnancy in low-resource settings.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=604
We haven't found a way to fully explain why some people develop chronic post-surgical pain after routine operations.
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Health & Biology
A subset of patients develop long-lasting pain after surgeries that are usually uncomplicated for most people, and the biological reason for this difference isn't fully understood. Better prediction and prevention could reduce this often overlooked outcome.
Team Humans Club. (2026). Problem WS00603: We haven't found a way to fully explain why some people develop chronic post-surgical pain after routine operations.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=603
We can't yet fully prevent the recurrence of migraines triggered by hormonal changes in some patients.
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Health & Biology
Hormone-related migraines can be particularly difficult to prevent using standard migraine treatments, leaving affected patients with limited effective options. A more targeted prevention approach remains needed.
Team Humans Club. (2026). Problem WS00602: We can't yet fully prevent the recurrence of migraines triggered by hormonal changes in some patients.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=602
We don't have an effective way to treat chronic hiccups that persist beyond a few days in rare but serious cases.
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Health & Biology
While uncommon, some patients experience hiccups that persist for weeks or longer, disrupting sleep, eating, and daily life, and effective treatment options remain limited. A more reliable treatment approach for these rare cases remains undeveloped.
Team Humans Club. (2026). Problem WS00601: We don't have an effective way to treat chronic hiccups that persist beyond a few days in rare but serious cases.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=601
We haven't solved how to prevent malnutrition-related anemia in pregnant women in food-insecure regions.
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Health & Biology
Anemia during pregnancy increases risks for both mother and baby, and it remains common in regions where access to iron-rich food and supplements is limited. Closing this nutritional gap remains an unresolved global health priority.
Team Humans Club. (2026). Problem WS00600: We haven't solved how to prevent malnutrition-related anemia in pregnant women in food-insecure regions.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=600
We can't yet fully explain why some patients develop chronic complications from Lyme disease despite early treatment.
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Health & Biology
Even when Lyme disease is caught and treated early, a portion of patients still develop lasting symptoms, and doctors don't fully understand why treatment doesn't fully resolve the illness in every case. Solving this could improve outcomes for a currently underserved group of patients.
Team Humans Club. (2026). Problem WS00599: We can't yet fully explain why some patients develop chronic complications from Lyme disease despite early treatment.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=599
We don't have an effective way to prevent the joint pain that sometimes follows chikungunya virus infection.
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Health & Biology
Chikungunya can cause joint pain that persists for months or even years after the initial infection has cleared, and current treatment options for this lingering symptom remain limited. A more effective long-term treatment remains needed.
Team Humans Club. (2026). Problem WS00598: We don't have an effective way to prevent the joint pain that sometimes follows chikungunya virus infection.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=598
We haven't found a reliable way to detect thyroid cancer early in populations without routine neck screening.
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Health & Biology
Thyroid cancer is often discovered incidentally rather than through routine screening, meaning some cases are caught later than they could be with more proactive detection. Expanding accessible screening remains an underused opportunity.
Team Humans Club. (2026). Problem WS00597: We haven't found a reliable way to detect thyroid cancer early in populations without routine neck screening.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=597
We can't yet fully prevent the chronic cough that sometimes persists long after a respiratory infection clears.
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Health & Biology
Some patients continue coughing for weeks or months after the original infection has resolved, and treatment for this lingering symptom remains inconsistent. A clearer understanding of why this happens could improve treatment.
Team Humans Club. (2026). Problem WS00596: We can't yet fully prevent the chronic cough that sometimes persists long after a respiratory infection clears.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=596
We don't have an effective, widely accessible way to treat postpartum hair loss that concerns many new parents.
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Health & Biology
Hair loss after childbirth is common and usually temporary, but effective treatments to speed recovery or reduce severity remain limited. While not medically dangerous, better options could ease a common and distressing postpartum experience.
Team Humans Club. (2026). Problem WS00595: We don't have an effective, widely accessible way to treat postpartum hair loss that concerns many new parents.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=595
We haven't solved how to prevent the long-term kidney damage caused by certain common pain medications.
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Health & Biology
Long-term use of some widely available pain medications can gradually damage kidney function, often without obvious symptoms until damage is significant. Better awareness and prevention methods remain incompletely applied.
Team Humans Club. (2026). Problem WS00594: We haven't solved how to prevent the long-term kidney damage caused by certain common pain medications.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=594
We can't yet fully explain why chronic fatigue syndrome affects women more frequently than men.
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Health & Biology
Chronic fatigue syndrome is diagnosed in women considerably more often than men, and the biological or social reasons behind this imbalance remain only partly understood. A clearer answer could improve diagnosis and treatment for both sexes.
Team Humans Club. (2026). Problem WS00593: We can't yet fully explain why chronic fatigue syndrome affects women more frequently than men.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=593
We don't have a reliable way to prevent the recurrence of yeast infections in women who experience them chronically.
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Health & Biology
Some women experience frequent, recurring yeast infections despite standard antifungal treatment, suggesting an underlying imbalance that current treatment doesn't fully address. A more effective long-term prevention method remains needed.
Team Humans Club. (2026). Problem WS00592: We don't have a reliable way to prevent the recurrence of yeast infections in women who experience them chronically.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=592
We haven't found an effective way to treat chronic dizziness caused by inner ear disorders in a large share of patients.
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Health & Biology
Persistent dizziness linked to inner ear problems can be difficult to diagnose precisely and treat effectively, leaving many patients with ongoing symptoms. A more reliable, targeted treatment approach remains undeveloped.
Team Humans Club. (2026). Problem WS00591: We haven't found an effective way to treat chronic dizziness caused by inner ear disorders in a large share of patients.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=591
We can't yet fully prevent the digestive complications that can follow gallbladder removal surgery.
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Health & Biology
Some patients experience ongoing digestive issues after gallbladder removal, a very common surgery, and current understanding of why this happens in some but not others remains incomplete. Better prevention or treatment of these complications remains needed.
Team Humans Club. (2026). Problem WS00590: We can't yet fully prevent the digestive complications that can follow gallbladder removal surgery.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=590
We don't have an effective, scalable way to treat childhood obesity before it leads to related diseases.
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Health & Biology
Many children with obesity go on to develop related health issues as adults, and current interventions haven't proven consistently effective at reversing childhood obesity at a population scale. A more effective, scalable approach remains an urgent unmet need.
Team Humans Club. (2026). Problem WS00589: We don't have an effective, scalable way to treat childhood obesity before it leads to related diseases.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=589
We haven't solved how to prevent the spread of drug-resistant malaria parasites across borders.
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Health & Biology
Resistant malaria strains have emerged in certain regions and are gradually spreading, threatening to undermine decades of progress against the disease. Coordinated, faster response to contain resistance before it spreads further remains incomplete.
Team Humans Club. (2026). Problem WS00588: We haven't solved how to prevent the spread of drug-resistant malaria parasites across borders.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=588
We can't yet fully treat chronic pelvic floor dysfunction affecting a significant share of postpartum patients.
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Health & Biology
Pelvic floor issues after childbirth can cause long-term discomfort and functional problems that current treatment options don't always fully resolve. A more effective, widely accessible treatment approach remains needed.
Team Humans Club. (2026). Problem WS00587: We can't yet fully treat chronic pelvic floor dysfunction affecting a significant share of postpartum patients.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=587