REV0lution Health Library

Evidence-informed articles on nutrition, metabolism, hormones, digestive health, fitness, recovery, lab testing, and functional medicine.

Understand your health. Backed by science.

How Does the Body Produce Energy During Exercise?

How Does the Body Produce Energy During Exercise?

How Does the Body Produce Energy During Exercise?Kerri Rachelle
Published on: 28/07/2026

Learn how the ATP-PC, glycolytic and aerobic energy systems work, overlap and shift during exercise—and how fuel, rest and creatine affect them.

Metabolic HealthFitness
What to Eat Before and After a Workout: Fueling for Performance, Blood Sugar, and Metabolic Flexibility

What to Eat Before and After a Workout: Fueling for Performance, Blood Sugar, and Metabolic Flexibility

What to Eat Before and After a Workout: Fueling for Performance, Blood Sugar, and Metabolic FlexibilityKerri Rachelle
Published on: 28/07/2026

Learn what to eat before and after a workout to support energy, blood sugar, muscle recovery, hydration, glycogen and metabolic health.

NutritionMetabolic HealthFitness
Perimenopause Weight Gain: Why It Happens and What Helps

Perimenopause Weight Gain: Why It Happens and What Helps

Perimenopause Weight Gain: Why It Happens and What HelpsKerri Rachelle
Published on: 27/07/2026

Learn why perimenopause can change weight, belly fat, muscle and metabolism—and how nutrition, strength training, sleep and metabolic care may help.

NutritionWomen's HealthFitness
What Is the Best Strength Training During Perimenopause?

What Is the Best Strength Training During Perimenopause?

What Is the Best Strength Training During Perimenopause?Kerri Rachelle
Published on: 23/07/2026

Learn how strength training during perimenopause supports muscle, bone and metabolic health—and how to train, fuel and recover effectively.

Women's HealthFitness

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