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Physiology Friday #264: Have We Been Fooled Into Thinking Exercise Improves Sleep?

Physiologically Speaking

Exercise has never been so en vogue—for better or worse. By worse, I mean we often discuss exercise as a panacea. Just exercise. Nowhere is this more apparent than in the realm of sleep, where exercise is often promoted as a way to help people sleep better, longer, and more deeply. Overweight? Or does it?

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Top Cardiology Conferences in 2025

Cardiology Update

As we step into 2025, the field of cardiology continues to offer exciting opportunities for knowledge exchange and networking at in-person conferences. Here is a preview of the upcoming cardiology conferences planned for 2025. Important Deadlines: Early registration fee: January 14, 2025.

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Physiology Friday #251: Does Our Body Have a ‘Muscle Memory’ for Aerobic Exercise?

Physiologically Speaking

Muscle memory is a concept in exercise science that highlights the remarkable ability of muscles to "remember" prior training, allowing for quicker adaptations when retraining after a break. The concept of muscle memory is quite simple: It suggests that our body will have an enhanced response to a specific exercise stimulus (i.e.,

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Physiology Friday #253: Low-carb Matches High-carb for Performance: Is it Time to Question the Obligatory Role of Glycogen for Endurance Exercise?

Physiologically Speaking

Adding to this controversy are questions about carbohydrate supplementation during exercise, particularly whether minimal carbohydrate intake can deliver performance benefits or if higher intakes are necessary to sustain energy levels and delay fatigue. And how effective is minimal carbohydrate supplementation during prolonged exercise?

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Physiology Friday #262: Everything You Need to Know about Zone 2 Training

Physiologically Speaking

In a 5-zone training model, zone 2 is the highest exercise intensity you can sustain while remaining predominantly aerobic (oxygen-driven). Physiologically, this results in faster recovery between and during workouts, improved endurance performance, and increased fatigue resistance during longer exercise sessions or competitions.

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The Best Way To Prevent Dementia

Dr. Paddy Barrett

That factor is exercise. Mitochondria are the batteries of every cell in your body) Regular exercise has been repeatedly shown to improve mitochondrial function and prevent insulin resistance. And high levels of exercise are clearly linked to better mitochondrial function. Global Impacts Of Exercise. How Much Exercise?

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Physiology Friday #257: Does Training Frequency Matter for Fitness Gains?

Physiologically Speaking

A few months ago ago, I wrote about a pair of studies showing that “weekend warriors”—those who concentrate their weekly exercise into one or two days— can achieve health benefits comparable to those who spread their activity throughout the week. How frequently one exercises may not be as important as how much.