heilys® Blog

Knowledge about light, energy & vitality

Here you can find out the latest findings from science and practice: explained in an understandable way, well-founded and inspiring for a healthy, energetic life.

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Most read

Red light for Hashimoto

Studies have shown that red light therapy can have a positive effect on thyroid function in people with Hashimoto's thyroiditis...
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Help with Long Covid

Long COVID poses a growing challenge: millions of people are also suffering...
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Losing weight with red light

There is hardly anything more frustrating than working hard at the gym but still...
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About the author

Yike Pan

Yike Pan is the founder of heilys®, an engineer, and a light researcher. With over 20 years of experience in electrical engineering, architectural lighting, and research at Eindhoven University of Technology, he is now dedicated to a clear mission: bringing healthy, bioactive light into everyday life—precisely, effectively, and scientifically.

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heilys® Blog

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NIR-Lichttherapie: Mechanismen und klinische Evidenz
Technology / technologie

Pulsed vs. continuous red/NIR light therapy: Mechanisms and clinical evidence

By Yike Pan

Photobiomodulation (PBM), or low-level laser therapy, uses red to near-infrared (NIR) light to stimulate healing, alleviate pain, and reduce inflammation. A key point of discussion in research is whether pulsed PBM (with periodic light pulses)...
Was ist der Abstrahlwinkel bei Rotlichttherapie?
Technologie Technology / technologie

What is the beam angle in red light therapy?

By Yike Pan

When it comes to red light therapy devices, we often encounter terms like power , wavelength , and dose . However, another crucial factor that is often overlooked is the lens's beam angle . This...
Dosierung bei Rotlichttherapie
Technology / technologie

Dosage for red light therapy

By Yike Pan

Red light therapy is enjoying increasing popularity due to its diverse health benefits – from anti-aging and pain relief to deep muscle regeneration. However, to truly reap these benefits, correct dosage is essential. This guide...
Die richtige Bestrahlungsstärke für Rotlichttherapie: Warum mehr nicht immer besser ist
Technology / technologie

The correct radiation intensity for red light therapy: Why more isn't always better

By Yike Pan

What is irradiance? Irradiance refers to the power of light emitted per unit area and is usually measured in milliwatts per square centimeter (mW/cm²). In red light therapy, it plays a crucial role in determining...
Wellenlänge und ihre therapeutische Wirkung
Technology / technologie

Wavelength and its therapeutic effect

By Yike Pan

Why wavelengths are crucial Light is not only a source of brightness, but also a form of energy that can deeply influence biological processes. Light is frequency – and different frequencies have different colors and...
Kriterien um die richtige Rotlichtlampe auszuwählen
Technology / technologie

Criteria for selecting the right red light lamp

By Yike Pan

Are you considering buying a red light lamp but unsure what to look for? Here you'll learn which criteria are crucial – not only in terms of the investment, but also for achieving the desired...
Omas Infrarotlampe vs. Moderne Lichttherapie
Technology / technologie

Grandma's infrared lamp vs. modern light therapy

By Yike Pan

Do you remember Grandma's infrared lamp? They used to be quickly brought out whenever someone caught a cold – a classic that can still be found in many households. But today, alongside these simple lamps,...