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Learn: guides to red light, sauna and cold

Guides, interviews and research on red light therapy, infrared sauna and ice baths from Helsi.

Lichttherapie Rotlichttherapie Vorteile für Zellgesundheit Wohlbefinden25 Mar 2026

Light Therapy & Red Light Therapy: Benefits for Cellular Health & Well-being

Learn how light therapy and red light therapy strengthen mitochondria, promote eye health, and improve your cellular health. Tips for healthy light!

2 Feb 2026

Patric Heizmann in conversation about infrared light: "No miracle cure – but a valuable tool when used correctly"

In a new interview titled "Infrared – THIS IS INCREDIBLE! How Infrared Light Works! Interview with Johannes Kettelhodt," health expert Patric Heizmann speaks with wellness expert for infrared technology, Johannes Kettelhodt. Together, they explore what infrared actually is, why the topic is often misunderstood, and how red light and near-infrared are used by athletes, biohackers, and health-conscious individuals as part of modern recovery and well-being routines.

10 Nov 2025

What really happens during red light therapy? The scientific truth.

Man using Helsi red light therapy lights for health and wellness18 Jan 2024

How to use red light therapy

Tips on how to get the most out of your red light therapy sessions.