Mental health

New Research: Fast Walking Reduces Risk of Cognitive Decline

Jackie Dallas MD July 14, 2026

Researchers discovered that adults in their 80s who maintain an fast walking pace cut their risk of cognitive decline by a staggering 50%. The study looked at data from nearly 4,000 older adults, tracking their walking speeds and mental clarity over several years. The top 9% of the fastest walkers in the group were given a wonderful new nickname by the research team: “Super Movers.”

Does NAD+ Therapy Actually Work?

Jackie Dallas MD June 8, 2026

NAD+ therapy is the latest miracle product and it promises everything from mental clarity, to energy and the fountain of youth! Because it is blowing up in the wellness world, I want to strip away the marketing fluff and look at the actual science of how it works and what is happening inside your cells, because the reality is both fascinating and a little more nuanced than the advertisements suggest.

Brain Fog and Boundaries: Preserving Your Sanity During Perimenopause

Jackie Dallas MD May 22, 2026

It is so important that we talk about the mental health aspect of perimenopause, because, honestly, the physical symptoms are almost easier to deal with than the feeling that you’re losing your mind. When estrogen starts to disappear, it takes a huge chunk of our serotonin and dopamine with it. Those are the “feel-good” chemicals that keep us stable, patient, and focused. Without them, you aren’t just “moody”. You’re dealing with a legitimate biochemical shift that can trigger deep depression or a level of anxiety that feels like a constant humming motor under your skin.

Hello! I am Jackie Dallas

A doctor, actress, and women's health advocate, Jackie is the founder of Her Health 101, a platform empowering women through evidence-based health education

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