TrainingMask releases the results of its latest clinical study by MDPI (The International Journal of Environmental Research and Public health), which shows that using Elevation Training Masks (ETMs) ...
Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The thin air at high ...
The performance-enhancing altitude mask that Olympic hopeful Sivert Guttorm Bakken was wearing when he was found dead this week “is not part of the Norwegian Biathlon Association’s organized training ...
On December 23, 2025, Sivert Guttorm Bakken, a 27-year-old Norwegian biathlete and European champion, was found dead in his hotel room at Passo di Lavazè in northern Italy, 1808 m above the sea level.
The performance-enhancing altitude mask that Olympic hopeful Sivert Guttorm Bakken was wearing when he was found dead this week "is not part of the Norwegian Biathlon Association's organized training ...
The performance-enhancing altitude mask that Olympic hopeful Sivert Guttorm Bakken was wearing when he was found dead this week “is not part of the Norwegian Biathlon Association’s organized training ...
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