Mar 15, 2026Nutrition

Keto for Endurance: Better Fat Burning, Tougher Race Pace

Can keto help endurance athletes? Reviews find dramatically higher fat oxidation, but cycling trials show an oxygen-cost penalty at race pace and safety gaps.

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Mar 15, 2026Physical Activity

Why Exercise Vascular Benefits Vary After Menopause

Aerobic exercise improves cardiometabolic health after menopause, but artery function may vary. New evidence points to nitric oxide, not faulty sensing.

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Mar 10, 2026Physical Activity

Pickup Soccer May Improve Youth Heart Health Markers

Small-sided soccer games lowered blood pressure and triglycerides in a youth meta-analysis. Here's what the evidence supports—and what it doesn't.

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Mar 9, 2026Physical Activity

HIIT With Type 1 Diabetes: Fitness Gains, Glucose Risks

Can HIIT work with type 1 diabetes? Evidence points to better fitness, while glucose risk shifts into recovery and post-meal windows where planning matters.

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Mar 9, 2026Physical Activity

HIIT, Walking, and Brain White Matter After Age 70

Five years of HIIT or walking did not beat control for older brains, but higher VO₂peak tracked with healthier white matter microstructure.

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Mar 9, 2026Physical Activity

Low-Carb, High-Fat Diets and HIIT: Fat Loss vs. Performance

Low-carb, high-fat diets plus HIIT can reduce fat mass and raise VO2max in short trials. The unanswered question is sustained interval performance.

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Mar 9, 2026Physical Activity

Sprint Intervals: Do More Minutes Improve Metabolic Health?

Do more sprint intervals improve metabolic health? A new meta-regression finds no dose signal, but diabetes and recovery evidence still carry limits.

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Mar 8, 2026Physical Activity

Cardiorespiratory Fitness and Brain Blood Flow: What Changes

Higher cardiorespiratory fitness links to better cerebrovascular reactivity and cortical oxygenation, not more resting brain blood flow.

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Feb 26, 2026Physical Activity

Sprint Intervals and Strength: What the 2026 Data Actually Show

A 2026 meta-analysis suggests sprint interval training can raise VO2max without blunting strength gains, but the evidence base is still small.

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