Expert Q&A

An anatomical heart model on a wooden table beside running shoes, a water bottle, a bowl of salad, mixed nuts, and a stethoscope, illustrating lifestyle interventions for cardiovascular risk.

What actually lowers cardiovascular risk: an expert's guide

The Levels Team

🕗 10 min read

A GLP-1 receptor agonist injection pen and box beside a healthy salad and water, illustrating GLP-1 medications for obesity and weight management.

Who should actually take a GLP-1? An obesity expert's honest take

The Levels Team

🕗 11 min read

A runner on a coastal road at sunrise, illustrating endurance exercise and how the body fuels athletic performance.

5 Insights that challenge what you think about carbs and exercise

The Levels Team

🕗 12 min read

Hands at a desk wearing a smartwatch showing heart rate and EKG waveform, beside a notebook titled Questions for my doctor and a laptop with a chat-style interface.

An expert's take on using AI for health

The Levels Team

🕗 11 min read

Dumbbells beside a plate with grilled chicken and vegetables on a light blue background, illustrating resistance training and whole-food protein.

5 Things an expert wants you to know about protein and muscle

The Levels Team

🕗 13 min read

Paper art of a red-and-blue heart model beside a cross-section of yellow and orange dots representing lipoprotein particles, on a light blue background.

6 Things you need to know about your cholesterol panel

The Levels Team

🕗 12 min read

A man runs along a tree-lined park path wearing athletic gear, with a circular sensor on his upper arm and a fitness tracker on his wrist.

Why you can't exercise your way to weight loss

The Levels Team

🕗 10 min read

A conceptual clay model of a cross-sectioned artery showing yellow plaque deposits narrowing the vessel. Red beads representing blood cells flow through the channel, surrounded by scattered white pills, a stethoscope, and an EKG heart rate graph.

The heart health test you haven't heard of—but should be getting

The Levels Team

🕗 12 min read

Why no diet wins—contrasting healthy eating patterns: low-carb/keto style meal vs plant-forward whole foods

No diet wins: 5 Key insights from 40 years of nutrition research

The Levels Team

🕗 12 min read

Why keeping weight off is so hard—metabolic adaptation, exercise, and weight management

Why keeping weight off is so hard—and what actually helps

The Levels Team

🕗 9 min read

How investigative journalist Gary Taubes learned to spot bad science in nutrition, why that matters for your health decisions, and how to think more like a careful scientist yourself.

Why bad science keeps misleading us about nutrition—and what to do instead

The Levels Team

🕗 5 min read

Womens Hormones

How to read women’s hormone labs like a functional medicine clinician

The Levels Team

🕗 7 min read

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