Research on brain health, cognitive performance, sleep science, dementia prevention, and mental clarity. Covers Alzheimer’s risk, sleep disorders, neurological health, and brain-boosting supplements — reviewed by Dr. Ajit Kumar, MD (Medicine) | MA Psychology.
Key Takeaways A 100,000-person study found semaglutide users had a 44% lower risk of depression and 38% lower risk of anxiety disorders Psychiatric hospital visits and sick leave dropped by 42% while on the medication Substance use disorder-related hospital care fell by 47% Published in The Lancet Psychiatry (May 2026) — the largest study of […]
Medical Review: This article was reviewed by Dr. Ajit Kumar, MD (Medicine) — Healthcare Consultant and Health Educator, Founder of Medimadad. Content is for educational purposes only and does not constitute medical advice. If you have concerns about your sleep quality, consult a doctor. India is now one of the world’s largest markets for smartwatches […]
Key Takeaways Consumer sleep trackers are reasonably accurate at detecting total sleep time (within 30-45 minutes) but significantly overestimate sleep quality Sleep stage accuracy (light, deep, REM) is poor — studies show only 65-69% accuracy compared to polysomnography The Oura Ring and Apple Watch perform best in independent validation studies; basic fitness trackers perform worst […]
Key Takeaways APOE4 is the strongest known genetic risk factor for late-onset Alzheimer’s disease One copy of APOE4 increases risk 2-3x; two copies increase risk 8-12x compared to the most common variant Approximately 25% of people carry at least one APOE4 allele; only 2-3% carry two copies Carrying APOE4 is not a death sentence — […]
Key Takeaways A blood test can now detect Alzheimer’s disease up to 15-20 years before symptoms appear The test measures phosphorylated tau (p-tau217) — a protein that accumulates in Alzheimer’s brains decades before memory loss Accuracy exceeds 90% in multiple validation studies — comparable to expensive PET brain scans Commercial versions are available globally; access […]
Medical Review: This article was reviewed by Dr. Ajit Kumar, MD (Medicine) — Healthcare Consultant and Health Educator, Founder of Medimadad. Content is for educational purposes only and does not constitute medical advice. India is in the middle of a quiet dietary crisis. Urban Indian consumption of ultra-processed foods — packaged chips, instant noodles, commercial […]
Medically reviewed by Dr. Ajit Kumar, MD (Medicine) | Member, Editorial Board, Medimadad Health Editorial Team If you have ever experienced a migraine that begins with visual disturbances — zig-zag lines, blind spots, flashing lights, or a shimmering arc of light that moves across your field of vision — you have experienced what neurologists call […]
⚕️ Medically Reviewed This article has been reviewed by Dr. Ajit Kumar, MD (Medicine), Healthcare Consultant. Content is for informational purposes only and does not constitute medical advice. Always consult your doctor before making health decisions. You went to bed at a reasonable hour, slept for eight hours, and woke up feeling like you barely […]
⚕️ Medically Reviewed This article has been reviewed by Dr. Ajit Kumar, MD (Medicine), Healthcare Consultant. Content is for informational purposes only and does not constitute medical advice. Always consult your doctor before making health decisions. Walk into any supplement shop and you will find both ashwagandha and creatine on the shelves — often marketed […]
⚕️ Medically Reviewed This article has been reviewed by Dr. Ajit Kumar, MD (Medicine), Healthcare Consultant. Content is for informational purposes only and does not constitute medical advice. Always consult your doctor before making health decisions. Sleep apnea affects an estimated 100 million people worldwide, and India carries a disproportionate burden — with obesity, anatomical […]
🦺Medically Written & ReviewedBy Dr. Ajit Kumar, MD Medicine — Healthcare Consultant and Health Educator, Founder of Medimadad. About the Author | Editorial Policy Creatine has been sitting in gym bags for decades. Now it is appearing in psychiatry research — and the findings are surprising enough that several academic medical centres have begun clinical […]
🦺Medically Written & ReviewedBy Dr. Ajit Kumar, MD (Medicine) — Lifetime Member, Indian Medical Association. About the Author | Editorial Policy Most people have heard of creatine. Most people assume it is just for bodybuilders. New research is proving that assumption completely wrong. Scientists have spent the last several years studying what creatine does to […]
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