Kurt Greiner
Why Does My Scalp Hurt? Common Causes and Next Steps
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Common causes of scalp pain, from sensitive scalp to tight hairstyles and nerve pain, and when to see a doctor. Read more…
Brain Aging: What Habits and Sleep Research Show
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Bilingualism, meditation, and sleep problems have each been studied in relation to brain aging or dementia risk, and subjective age in relation to general health. Most findings are associations rather than proof. Read more…
Once-Weekly HIIT and Fat Loss: What a 315-Adult Trial Found
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A randomized trial of 315 adults found that HIIT once a week lowered fat mass by about 0.8 kg after 16 weeks versus a no-exercise control, but the fat-mass gap was gone four months after the program ended. Read more…
How to Choose a Mineral Sunscreen That Works
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What separates a good mineral sunscreen from a chalky one, and the four things dermatologists say to check before you buy. Read more…
Heart Disease, Frailty, and Memory Loss Often Overlap
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A major ACC statement says heart disease, frailty, and cognitive decline in older adults often share underlying aging processes, and recommends assessing them together while noting the evidence is limited. Read more…
Why You Get White Spots on Your Nails
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Dermatologists explain leukonychia — the five most common causes of white spots on your nails, and when they’re worth a doctor’s visit. Read more…
