Protocols
Walking vs. Strength Training: Which Matters More After 50?
Both show up constantly in longevity research, but they don't do the same job. Here's what the evidence says each one is actually good for after 50.
2 min read
Dr. Nina Harlow
Contributing Researcher
Dr. Harlow covers metabolic and microbiome research for Health Protocol, translating peer-reviewed studies into practical context for readers.
Articles by Dr. Nina Harlow
Nutrition
How Much Protein Do Women Actually Need After 40?
Standard protein guidelines were largely built around younger adults. Here's what more recent research says women over 40 actually need to preserve muscle.
2 min read
News
Why Metabolism Slows After 50 — What the Research Actually Says
A research-based look at the muscle, hormone, and gut microbiome changes behind slower metabolism after 50 — and what the evidence says actually helps.
2 min read