Yiannis Christoulas

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78 videos

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Evidence-based educational content to help you achieve all-around fitness.

Latest Videos

Round vs. Straight Back Stretching Is One Actually Safer or More Effective

Round vs. Straight Back Stretching Is One Actually Safer or More Effective

Yiannis Christoulas

4.2K views·2 months ago

4 Hard Truths About Flexibility Training I Wish I Knew From Day #1

4 Hard Truths About Flexibility Training I Wish I Knew From Day #1

Yiannis Christoulas

64.0K views·9 months ago

Why Full-Range Exercises DON'T Build Full-Range Strength (Science-Based)

Why Full-Range Exercises DON'T Build Full-Range Strength (Science-Based)

Yiannis Christoulas

19.3K views·1 year ago

The 20 BEST and Worst Side Split Exercises Ranked

The 20 BEST and Worst Side Split Exercises Ranked

Yiannis Christoulas

248.8K views·1 year ago

Study Shows 30% Flexibility Improvement! Here's How They Did It.

Study Shows 30% Flexibility Improvement! Here's How They Did It.

Yiannis Christoulas

14.4K views·1 year ago

How to Squat Properly In-Depth Technique Guide (ft. ELEIKO)

How to Squat Properly In-Depth Technique Guide (ft. ELEIKO)

Yiannis Christoulas

10.2K views·1 year ago

Stop Using Loaded Stretching for Flexibility (Here’s Why)

Stop Using Loaded Stretching for Flexibility (Here’s Why)

Yiannis Christoulas

39.4K views·2 years ago

#3 Undeniable Ways Flexibility Training Increases Strength!

#3 Undeniable Ways Flexibility Training Increases Strength!

Yiannis Christoulas

11.9K views·2 years ago

Standing vs Sitting Desk Which Is Better

Standing vs Sitting Desk Which Is Better

Yiannis Christoulas

24.3K views·2 years ago

8 Reasons Why Changing Exercises Destroys Yours Gains

8 Reasons Why Changing Exercises Destroys Yours Gains

Yiannis Christoulas

9.3K views·2 years ago

How To Feel Less Pain When Stretching - (Science-Based Technique)

How To Feel Less Pain When Stretching - (Science-Based Technique)

Yiannis Christoulas

12.3K views·2 years ago

Blood Flow Restriction The Only Science Based Benefits – (26 Studies)

Blood Flow Restriction The Only Science Based Benefits – (26 Studies)

Yiannis Christoulas

51.4K views·2 years ago

Strong & Flexible 2 Ways To Improve Both Simultaneously

Strong & Flexible 2 Ways To Improve Both Simultaneously

Yiannis Christoulas

13.0K views·2 years ago

Flexibility Specialist Tries Cheerdancing - (Unexpected Fail)

Flexibility Specialist Tries Cheerdancing - (Unexpected Fail)

Yiannis Christoulas

21.0K views·3 years ago

How Long to REST for Muscle Hypertrophy (Science-Based, Ft. Dr. Swole!)

How Long to REST for Muscle Hypertrophy (Science-Based, Ft. Dr. Swole!)

Yiannis Christoulas

8.8K views·3 years ago

How Does PNF differ from C-PR Learn This to Increase Flexibility Faster!

How Does PNF differ from C-PR Learn This to Increase Flexibility Faster!

Yiannis Christoulas

47.5K views·3 years ago

Rounded Back Deadlifts. A So-Called “Not Proven” Danger That Is Actually Proven!

Rounded Back Deadlifts. A So-Called “Not Proven” Danger That Is Actually Proven!

Yiannis Christoulas

13.7K views·3 years ago

How Many Sets Should You Do For Muscle Growth - (Science Of Sets)

How Many Sets Should You Do For Muscle Growth - (Science Of Sets)

Yiannis Christoulas

7.7K views·3 years ago

3 Expert Tips for Increasing Flexibility in 2023!

3 Expert Tips for Increasing Flexibility in 2023!

Yiannis Christoulas

12.7K views·3 years ago

How Many Reps to Build Muscle The Ultimate Science Overview (50+ Studies)

How Many Reps to Build Muscle The Ultimate Science Overview (50+ Studies)

Yiannis Christoulas

11.6K views·3 years ago

An Unexpected Exercise for Stronger Deadlifts With 0.0% Back Pain

An Unexpected Exercise for Stronger Deadlifts With 0.0% Back Pain

Yiannis Christoulas

13.3K views·3 years ago

How To Get Flexible A New Method - (Contract Passive Range)

How To Get Flexible A New Method - (Contract Passive Range)

Yiannis Christoulas

268.7K views·3 years ago

Should You Train To Failure To Build Muscle - (Science Overview)

Should You Train To Failure To Build Muscle - (Science Overview)

Yiannis Christoulas

15.5K views·3 years ago

Lower Back Pain Cause, Stretches & Exercises

Lower Back Pain Cause, Stretches & Exercises

Yiannis Christoulas

14.0K views·3 years ago

How to Lose Weight and Maintain It - (Scientists Say this for Years!)

How to Lose Weight and Maintain It - (Scientists Say this for Years!)

Yiannis Christoulas

11.3K views·3 years ago

How to do the Splits Fast -- This Technique Changed Everything! -- (Science Based)

How to do the Splits Fast -- This Technique Changed Everything! -- (Science Based)

Yiannis Christoulas

1.7M views·3 years ago

How to Sit Properly - Desk Ergonomics

How to Sit Properly - Desk Ergonomics

Yiannis Christoulas

1.4M views·3 years ago

4 Unexpected Reasons People Hate Running

4 Unexpected Reasons People Hate Running

Yiannis Christoulas

9.4K views·3 years ago

How to Fix Rounded Shoulders - Science Based Routine (21 Studies)

How to Fix Rounded Shoulders - Science Based Routine (21 Studies)

Yiannis Christoulas

372.4K views·3 years ago

Is Sumo Deadlift Cheating - (Science-Based Response to Jeff Nippard)

Is Sumo Deadlift Cheating - (Science-Based Response to Jeff Nippard)

Yiannis Christoulas

26.8K views·4 years ago

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