Marijuana and Sleep: Does Cannabis Actually Help You Sleep Better?
THC can make you feel sleepy, but that's not the same as sleeping well. Here's what the evidence shows about cannabis, CBD, and sleep quality.
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Longevity, explained
Evidence-based writing from our physicians on brain health, cancer screening, metabolic health, and living longer, better.
What Your Brain Is Really Doing While You Sleep
Sleep isn't the quiet part of the day. While you're unconscious, your brain is sorting memories, clearing toxic proteins, repairing tissue, and cycling through stages evolution has spent millions of years refining.
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Technology, Attention, and Brain Health: What the Science Really Says
Smartphones aren't rewiring your brain the way headlines claim. But how you use technology does influence attention — and attention is the gateway to memory, learning, and long-term cognitive health.
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Alcohol and Cognitive Decline: What the Data Actually Shows
The idea that moderate drinking protects the brain hasn't held up. Here's what large-scale analyses, brain imaging studies, and better statistical methods now tell us about alcohol and long-term cognitive health.
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Social Connection and Brain Health: Purpose, Engagement, and Cognitive Aging
Social isolation is a recognized dementia risk factor — but connection, purpose, and lifelong learning may do more than reduce risk. Here's what the research shows and what it means practically.
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Chronic Stress and Brain Health: How Stress Accelerates Cognitive Aging
Chronic stress doesn't just affect mood — it disrupts sleep, raises blood pressure, worsens metabolic health, and may accelerate cognitive decline. Here's what the research shows and what you can do about it.
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Sleep and Brain Health: What Happens to Your Brain While You Sleep?
Sleep is not passive downtime — it's when your brain consolidates memories, clears Alzheimer's-associated proteins, and performs the overnight maintenance that determines how well you age cognitively.
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Exercise and Brain Health: How Movement Protects Cognitive Function
How aerobic training, strength training, and BDNF support cognitive resilience and dementia prevention.
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Movement as Medicine for the Heart
Exercise is more than a way to burn calories—it is a biological signal that alters vascular health. Learn how movement protects and stimulates your heart.
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