Dr. Stacy Sims

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1,960 appearances 8 recordings 5 series first heard Jul 2024 last heard 9 Jul

Dr. Stacy Sims’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 4 in all, peaking in Oct 2025 with 2.

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Feel Better, Live More with Dr Rangan Chatterjee · BITESIZE | What You Need To Know About Strength, Menopause & Healthy Ageing | Dr Stacy Sims #673 · 9 Jul 2026 podcast

And because women are tired but wired, the bacteria that grows is more of a Firmicutes phyla.

So that means it's more of the obesogenic phyla.

So this encourages the body to hold on to body fat.

So when I bring it back down to what are we gonna do to counter this?

Because we can't counter what's happening with the downregulation of our estrogen, progesterone receptors, or that our ovaries are starting to wind down naturally.

So we look at those external stressors.

Resistance training for lifting heavy loads, it's going to create an adaptation that makes myosin and actin hold onto each other strongly to be able to have a central nervous system response for really strong muscle contraction.

If we look at high intensity interval training, and we talk about it as like true polarized, we're going as 80% to 110% of our max, and then having significant recovery between each effort.

This creates a change that allows our muscles to pull carbohydrate in and glucose in without insulin.

It also creates more of a conversation with what we call myokines, which are hormones that are released from the skeletal muscle to circulate to say, you know what?

We don't need these free fatty acids to be changed and stored as visceral fat.

We need these free fatty acids to be used as fuel.

So it improves the way that our mitochondria are using our free fatty acids and improves our metabolic flexibility.

So when we're talking about why resistance training is so important, it's all about maintaining strength and power as well as lean mass.

Why is high intensity interval training so important?

It gives us much better metabolic control and more feedback to reduce the buildup of that dangerous visceral fat.

So resistance training is the umbrella term of a push-pull against your body, meaning that you are pushing or pulling a load that is heavier than just your body weight.

And this is how we increase our overall strength or our power.

When we're looking at lifting heavy or specific strength training, this is when we're getting in the nuts and bolts of how we do it.

So if we're looking at strength training, this could be anywhere from air squats and pushups to tire flips and Olympic lifting.

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