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Cool Roof Paint Lowers Indoor Temperatures Across African HouseholdsReflective roof paint applied to asbestos roofs in Khayelitsha, a township on the outskirts of Cape Town, has made summer evenings noticeably cooler, allowing residents to sleep better and stay indoors during scorching days.Study Shows 3‑4°C Temperature Drop in Painted RoofsTemperature data collected over three summers from 240 houses across Africa reveal a consistent cooling effect in homes with painted roofs.240 houses monitored in total30 painted roofs and 30 unpainted controls in KhayelitshaAverage indoor temperature reduction of 3‑4°C during the hottest time of dayIn 2024, South Africa experienced 13 heatwave days (80% attributed to climate change)Health Benefits Linked to Cooler HomesResearchers Lara Dugas (epidemiologist) and Mark New (climate scientist) report that the cooler indoor environment improves sleep quality, which in turn mitigates mental‑health risks and reduces the severity of conditions such as hypertension, diabetes and cardiovascular disease.Implications for Climate‑Adaptation Policy in Low‑Income CommunitiesThe pilot, called Habvia, is one of nine projects under the Wellcome Trust‑funded HeatNexus programme. It demonstrates that locally manufactured, infrared‑reflective paint (Rhinoluxe Heat Reflect) can be a cost‑effective adaptation tool where existing solutions are lacking. Scaling the approach could address heat‑related health inequities in both urban and rural settings across Africa.Future Outlook: Scaling Up Cool‑Roof InterventionsThe research team aims to “paint millions of roofs,” emphasizing price, local supply chains and community engagement as critical factors for broader rollout. Continued monitoring will assess long‑term health outcomes and inform policy recommendations for heat‑resilient housing in low‑ and middle‑income regions.

The Rise of Nigeria's Digital Herbal Marketplace In Abuja, Nigeria, Oke Bola thought a fertility supplement she found online might help her conceive. Instead, within days of taking it, she struggled to breathe. Her experience reflects a growing online trade in unverified herbal remedies promoted across social media platforms. Bola, who is in her early 40s and has never had children, bought the supplement earlier this year and increased the recommended dosage, hoping for quicker results after hearing about it from friends and family. "I recognised the symptoms of asthma; the wheezing sound at night was familiar," she told Al Jazeera. "When I checked online, I realised it could be from the herbal medication." Her experience is not isolated. Across Nigeria, doctors and pharmacists report a surge in social media-driven self-medication, particularly involving unverified herbal products. This trend is worsening health outcomes, delaying treatment, and adding pressure to an already strained healthcare system serving about 230 million people. Nigeria's young, hyperconnected population increasingly uses digital platforms for health information and advice. But that access has also created what Dr Isaac Kolawole and Dr Fidelis describe as an "algorithmic apothecary" – an unregulated online marketplace where influencers and anonymous sellers promote remedies directly to consumers with little or no scientific backing. Health Impacts of Unverified Herbal Remedies Within this ecosystem, herbal remedies, long part of Nigeria's medical and cultural landscape, are increasingly repackaged as miracle cures, sometimes with dangerous consequences. Doctors report more patients arriving at hospitals only when their conditions have significantly worsened, often after prolonged use of unverified treatments. A consultant nephrologist at the University College Hospital in Ibadan, Dr Yemi Raji, said herbal medicine continues to play a role in kidney disease cases in Nigeria. "When you take herbal medication, you are taking both the good and the bad," he said. "Patients often arrive late, when treatment is more difficult and expensive." Dialysis alone can cost between 50,000 and 100,000 naira ($36-72) per session, several times a week. Studies link herbal use to kidney and liver disease cases across Africa, including findings that about 46 percent of liver disease admissions in one Nigerian hospital involved herbs or roots. A 2022 study found that 76.65 percent of participants had used herbal medicine, with more than a third combining herbal and conventional treatments while 82.44 percent did not inform their doctors. The Algorithmic Amplification Effect On a smartphone screen, relief is just a click away: fertility tonics, eye drops promising restored vision, syrups claiming to "flush out" disease. The advertisements are polished, persuasive and constant, woven into TikTok, Facebook, Instagram and X feeds. "The platforms themselves amplify this effect," said Dr Egemba Chinonso Fidelis, a public health advocate known online as Aproko Doctor. "Their algorithms reward engaging content and push it to wider audiences." Even users who try to avoid such content often encounter it repeatedly, shaped by emotional storytelling, music and urgency-driven messaging. A 2025 Nigeria-based study on Jinja Herbal Mixture found it appeared safe for short-term use within tested dosage ranges, but researchers recorded biochemical changes at higher doses, including altered creatinine and sodium levels in test subjects, signs of possible kidney and liver stress. The study called for further research into long-term effects and interactions with conventional medicines. Regulatory Challenges in the Digital Age The National Agency for Food and Drug Administration and Control (NAFDAC) says it is working to track unregistered manufacturers, but enforcement remains difficult, especially online. "With the sheer volume of products online, enforcement has limited reach," said Isaac Kolawole, the southwest zonal director of NAFDAC. Many sellers use fake or incomplete addresses, making them difficult to trace. NAFDAC requires strict registration, testing and approval before herbal products can be sold or advertised, but regulation has not kept pace with online commerce. Fidelis argued that stronger regulation alone is not enough. "If there are no consequences for lying about healthcare online, people will keep doing it," he said. He noted that scammers have even used AI-generated versions of his image to promote fake products. "Real medicine does not promise to cure everything, and it does not rely on countdowns," he added. "Scammers do." Path Forward for Safer Digital Health As Nigeria's digital economy expands, the intersection of technology and healthcare will only grow more complex. Fidelis stressed that access to affordable healthcare must improve, public trust must be rebuilt, and digital platforms must take responsibility for the health content they amplify. Pharmacist Akinade Akinlolu noted that while conditions like diabetes and hypertension can be managed, online claims often suggest cures. "Economic pressure is also pushing people towards cheaper or 'miracle' alternatives," he added. "Without stronger safeguards," Fidelis warned, "the algorithmic apothecary will continue to grow and put more people at risk." The challenge for Nigeria's healthcare system is to harness the power of digital platforms while ensuring they promote evidence-based care rather than potentially harmful alternatives.

The LeadAfter more than a decade of devastating conflict, Syria stands at a critical juncture where the restoration of its healthcare system has become the cornerstone of national recovery. The nation's ability to heal—both physically and psychologically—is inextricably linked to the rebuilding of medical infrastructure that has been systematically destroyed during the war.The Collapsed Medical InfrastructureSyria's healthcare system has suffered catastrophic damage throughout the conflict, with reports indicating that over 70% of hospitals and clinics have been destroyed, damaged, or rendered non-functional. The exodus of medical professionals has left the country with a severe shortage of doctors, nurses, and specialized healthcare workers. Essential medical supplies are consistently scarce, while vaccination programs have collapsed, leading to preventable disease outbreaks in vulnerable populations.The Humanitarian ConsequencesThe absence of adequate healthcare has had devastating effects on Syria's population. Maternal mortality rates have increased by over 200%, while infant mortality has risen to levels not seen in decades. Chronic conditions like diabetes and hypertension go untreated, leading to complications and premature deaths. Mental health services are virtually nonexistent, leaving millions traumatized by years of violence with no access to psychological support or counseling.The Road to RecoveryRebuilding Syria's health system requires a comprehensive approach that addresses immediate needs while establishing long-term sustainability. This includes rehabilitating existing medical facilities, establishing supply chains for essential medicines and equipment, training healthcare workers, and implementing public health initiatives. The process must prioritize primary healthcare services that reach all populations, regardless of geographic location or political affiliation.International Challenges and OpportunitiesThe international community has recognized healthcare as a critical component of Syria's recovery, with numerous organizations pledging support for reconstruction efforts. However, significant challenges remain, including political divisions, funding shortfalls, and security concerns that complicate implementation. Sanctions and restricted access to certain medical supplies further hinder progress. Despite these obstacles, the rebuilding of Syria's healthcare system presents an opportunity for international cooperation and a foundation for broader peace and stability in the region.

The Allure of the Enhanced Games The Enhanced Games, dubbed the 'Steroid Olympics,' is a new and highly contentious sports event set to take place in Las Vegas. The competition allows athletes to use banned performance-enhancing drugs, such as anabolic steroids, testosterone, and human growth hormone. In return, participants can earn substantial rewards, with some athletes potentially walking away with millions of dollars. Athletes Weighing the Risks Ukrainian swimmer Andriy Govorov, the 50m butterfly world record-holder, is one of the athletes competing in the Enhanced Games. He reveals that he was anxious about taking banned drugs for the first time, but the potential financial reward was too enticing to ignore. Govorov could earn around $1m if he performs well. The Financial Incentives The financial incentives for participating in the Enhanced Games are significant. Britain's Ben Proud, a silver medalist in the 50m freestyle swimming at the Paris Games, is reportedly on a mid-six-figure salary with Enhanced. If he wins the 50m and 100m freestyle and swims faster than the current world records, he could earn an additional $2.5m. The Health Risks However, the use of banned performance-enhancing drugs comes with serious health risks. The World Anti-Doping Agency (WADA) warns that these substances can lead to long-term side effects, including hypertension, heart attack, and blood clots. Despite these risks, Christian Angermayer, co-founder of the Enhanced Games, believes that the benefits outweigh the costs when used under strict medical supervision. The Future of Sports? The Enhanced Games represent a new and uncertain frontier in sports. While some see it as a threat to traditional athletics, others view it as an opportunity for athletes to take control of their own bodies and careers. As the event approaches, the world will be watching to see how it unfolds and what the consequences will be for the athletes involved.

Breakthrough Eye‑Scan Technology UnveiledResearchers disclosed a novel ocular imaging method that can spot disease markers long before patients experience any symptoms. The announcement, made on 2026‑05‑13, highlights the scan's ability to analyze retinal biomarkers linked to systemic conditions.Mechanism Behind Pre‑Symptomatic DetectionThe scan leverages high‑resolution retinal photography combined with AI‑driven pattern recognition. By mapping micro‑vascular changes and cellular anomalies, the system flags early signs of illnesses such as diabetes, hypertension, and neurodegenerative disorders.Non‑invasive retinal imagingMachine‑learning algorithms trained on longitudinal health dataDetection window extending years before conventional diagnosisPotential Healthcare Cost ImplicationsEarly identification could reduce long‑term treatment expenses by enabling timely interventions. While specific cost figures were not disclosed, analysts note that preventing disease progression typically lowers hospitalization rates and chronic‑care spending.Implications for Preventive MedicineThis technology aligns with a growing emphasis on preventive care, offering clinicians a tool to monitor patient health proactively. It may also reshape screening protocols, shifting focus from reactive testing to routine ocular assessments.Future Outlook for Early DiagnosisExperts anticipate broader clinical trials and integration into primary‑care settings within the next few years. If validated, the eye scan could become a standard component of annual health check‑ups, accelerating the move toward a pre‑emptive healthcare model.

ACCESS: Medicare’s First AI‑Enabled Outcome‑Based Payment Model Pair Team was announced on April 30 as one of 150 organizations accepted into ACCESS (Advancing Chronic Care with Effective, Scalable Solutions), a CMS initiative that launches on July 5. The program shifts reimbursement from traditional time‑based fees to payments tied to measurable health outcomes such as lower blood pressure or reduced pain, covering conditions like diabetes, hypertension, chronic kidney disease, obesity, depression, and anxiety. Revenue Scale and Funding Behind Pair Team Staff: roughly 850 clinical professionals, the largest community‑health workforce in California. Revenue: exceeds nine figures (>$100 million) annually. Capital raised: about $30 million from investors including Kleiner Perkins, Kraft Ventures, and Next Ventures. Patient reach: partnerships give access to ~500,000 potential patients, with a goal of 1 million within three years. Industry context: digital‑health funding hit its highest Q1 total since the pandemic, with AI firms capturing the bulk of new capital. How Outcome‑Based Payments Could Redefine Chronic Care Delivery The ACCESS model creates the first federal mechanism to pay for AI agents that monitor patients between visits, coordinate social services, and ensure medication adherence. Flora, Pair Team’s voice‑AI assistant, now handles 24/7 intake, referrals, and check‑ins, delivering hour‑long conversations that act as both clinical touchpoints and companionship for high‑needs patients. Peer‑reviewed research in the Journal of General Internal Medicine shows Pair Team’s community‑integrated approach cuts avoidable emergency and inpatient utilization, with one‑in‑four hospital visits and one‑in‑two ER visits averted for its members. Risks remain: the program funnels highly sensitive data into a federal system with a history of breaches, and past CMS innovation pilots have drawn criticism for increasing federal spending without delivering projected savings. What’s Next for AI‑First Health Providers Under ACCESS Batlivala argues that lower per‑patient reimbursement rates are intentional, forcing providers to adopt lean, AI‑driven operations. As the program scales, success will hinge on: Automating patient interactions to keep costs below payment thresholds. Demonstrating measurable outcome improvements across the covered chronic conditions. Managing data‑privacy concerns to maintain trust among vulnerable populations. Attracting additional capital as investors watch the first AI‑centric Medicare payment model unfold. If Pair Team and its peers can prove the model’s efficacy, ACCESS could become a template for nationwide AI‑enabled, outcome‑based reimbursement, reshaping how Medicare incentivizes technology in health care.

The Postpartum Health Window: A New Prevention StrategyNew mothers who experienced hypertension during pregnancy could significantly reduce their long-term risk of heart attack, stroke, and premature death by implementing daily home blood pressure monitoring, according to a pivotal study from the University of Oxford.Methodology: The Oxford Intervention TrialThe research, published in the journal Hypertension, involved 220 women who had developed hypertension during pregnancy. The study compared two approaches to postpartum care:Standard Care: 108 women received routine care with infrequent blood pressure checks and medication adjustments.Home Monitoring: 112 women used home monitors to check their blood pressure daily. Readings were shared via an app, allowing doctors to adjust medication day-to-day for optimal control.Quantifying the Benefit: Arterial Health and Risk ReductionThe data reveals a tangible physiological improvement in the home monitoring group. Six to nine months after birth, women who managed their blood pressure at home had significantly less stiff arteries compared to those in the standard care group. This reduction in arterial stiffness is clinically significant because it directly correlates with better blood flow and reduced clot formation.Researchers estimate that this specific intervention could reduce the future risk of heart attack or stroke by 10%. Furthermore, the study highlights a broader statistical reality: Harvard researchers found that high blood pressure in pregnancy is linked to a 42% rise in the risk of premature death.Why the Postpartum Period is Critical for Long-Term Cardiovascular HealthProfessor Paul Leeson, who led the study, emphasized that the weeks following birth represent a "powerful and often overlooked opportunity" to protect women's future health. High blood pressure in pregnancy, whether gestational or pre-eclampsia, affects 5-10% of pregnant women and can damage organs immediately.Beyond immediate threats, the condition creates a lasting legacy. Women with a history of hypertensive pregnancy are three times more likely to develop high blood pressure later in life and twice as likely to develop heart disease.The Path Forward: NHS Integration and Future ResearchThe findings are paving the way for a shift in postpartum care standards. Trials are currently underway to determine the most effective methods for rolling out blood pressure monitoring to women after hypertensive pregnancies, with specialist NHS clinics being a primary option.Dr. Sonya Babu-Narayan, clinical director at the British Heart Foundation, noted that this research underscores the importance of the renewed women's health strategy, ensuring that heart health advice is integrated into care at key life stages, from pregnancy through menopause.