The Ultimate Guide to Menopause: How to Boost Your Metabolism, Build Muscle, & Balance Your Hormones

What It Covers

Dr. Stacy Sims explains how estrogen and progesterone loss during menopause affects every body system, and presents research-based strength training protocols that rewire the body to function optimally without these hormones, improving metabolism, muscle, and cognition.

Key Questions Answered

• •Strength training neural adaptation: Heavy lifting three times weekly (3x5 reps at 80%, 2x3 at 85%, three-minute rest between sets) forces the nervous system to recruit muscle fibers without estrogen, creating new neural pathways that improve muscle contraction strength, acetylcholine production, and brain neuroplasticity simultaneously.
• •Sprint interval protocol: Thirty seconds maximum effort followed by ninety to 120 seconds complete recovery, repeated three times, triggers metabolic changes that signal the liver not to store visceral fat. This high-quality intensity approach proves more effective than forty-five minute moderate-intensity classes for perimenopausal women.
• •Protein requirements increase: Women in perimenopause need approximately one gram of protein per pound of current body weight daily because muscle breakdown accelerates while synthesis decreases. Diversifying protein sources across meals (combining plant and animal proteins) makes this target achievable without excessive single-source consumption.
• •Gut microbiome and mood connection: Ninety-five percent of serotonin production occurs in the gut, not the brain. Declining estrogen reduces gut bacteria diversity, decreasing butyrate production and affecting vitamin K, vitamin D utilization, and neurotransmitter synthesis, which directly impacts mood regulation and stress response during menopause.
• •Creatine monohydrate for mental health: Three to five grams daily of creatine monohydrate helps women exit depressive and anxious episodes faster than SSRIs alone by saturating the brain and improving brain metabolism. This supplement complements pharmaceutical interventions or works independently for mood regulation during hormonal transitions.