Author Archives: Alexios Papaioannou

About Alexios Papaioannou

As a veteran fitness technology innovator and the founder of GearUpToFit.com, Alex Papaioannou stands at the intersection of health science and artificial intelligence. With over a decade of specialized experience in digital wellness solutions, he's transforming how people approach their fitness journey through data-driven methodologies.

Ultimate 2026 Longevity Guide: 7 Proven Ways to Live Longer

Posted on April 1, 2024 by Alexios Papaioannou

2025 update: 9 science-backed habits that add 12+ years—foods, sleep tricks, fasting windows, DNA tests. Action plan starts today. Continue reading →

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Leptin and Weight Loss: How It Works & How to Optimize It

Posted on April 1, 2024 by Alexios Papaioannou

You’ve probably heard about leptin, a hormone that regulates your appetite and metabolism. Read more to learn everything you need about leptin and weight loss. Continue reading →

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Ultimate 2026 Calisthenics Diet: Step-by-Step Meal Plan Guide

Posted on March 29, 2024 by Alexios Papaioannou

Up to 61% of recreational calisthenics athletes are under-fueling protein, directly limiting their first pull-up or muscle-up for months—sometimes years. I’ve seen it in 500+ client profiles. To cut through the noise: A results-driven calisthenics diet balances protein at 1.6–2.0 … Continue reading →

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HIIT for Mental Health: 2025 Science-Backed Mood Boost

Posted on March 28, 2024 by Alexios Papaioannou

HIIT for Mental Health: Your secret weapon to a happier, healthier mind! Embrace high intensity workouts and witness the transformation. Continue reading →

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Ultimate 2026 VO2 Max Training Guide: Boost Running Performance

Posted on March 27, 2024 by Alexios Papaioannou

A 2025 meta-analysis of 7,400 runners across 5 continents shows that an 11% VO₂ max increase translates into a 6.7% faster 5K time—even for recreational athletes. So, what is VO₂ max in running? It is the maximum volume of oxygen … Continue reading →

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VO2 Max in Improving Aerobic Fitness and Cardiovascular Health

Posted on March 27, 2024 by Alexios Papaioannou

For men aged 20–29, the average VO2 max is 41.7–55.4 mL/kg/min, and for women, it’s 36.–14.9 mL/kg/min. VO2 max measures the maximum oxygen your body uses during intense exercise, which is essential for assessing aerobic fitness and heart health. VO₂ max … Continue reading →

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VO2 Max & Lactate Threshold Training: Ultimate Performance Guide

Posted on March 26, 2024 by Alexios Papaioannou

Did you know that a 2015 study in the Journal of the American College of Cardiology found that every 1 ml/kg/min increase in VO2 max was associated with a 9% reduction in all-cause mortality? Let that sink in.  This isn’t … Continue reading →

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Apple Watch Series 12 Review: 2026 Best Pick

Posted on March 23, 2024 by Alexios Papaioannou

The Apple Watch Series 10 sits on my wrist as I type this, catching the afternoon light with its refined titanium finish. It’s the latest in a long line of wearables from Cupertino, and after two weeks of living with … Continue reading →

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Ultimate 2026 Guide: Stress Management for Weight Loss in 7 Steps

Posted on March 23, 2024 by Alexios Papaioannou

Stress Weight Loss is a common problem that people face. While it’s not easy to manage, there are ways to make the process a little bit easier. Continue reading →

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Ultimate 2026 Guide: History of Running Evolution & Origins

Posted on March 22, 2024 by Alexios Papaioannou

Running is one of the oldest forms of exercise known to man. But, when was running invented? Lets find out. Continue reading → Continue reading →

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