Warning: Altitude Sickness Shouldn't Be Taken Lightly (Popularity: ): Article from Health World about the effects of altitude on exercise. Apex Altitude (Popularity: ): A charity that exists to perform high altitude medical research and educate the public about the topic Healthy Me (Popularity: ): Basic information, including a bibliography. Merck Manual of Diagnosis and Therapy (Popularity: ): Chapter from the Merck Manual on altitude sickness covering causes, treatment, and prevention. Supplemental Oxygen for the General Aviation Pilot (Popularity: ): Article on determining the need for supplemental oxygen at density altitude. Special Safety Considerations for High Altitude Mountaineering (Popularity: ): Article on the effects of altitude with an emphasis on climbing at altitude. High-Altitude Pulmonary Edema: Current Concepts (Popularity: ): Abstract of a 1996 article summarizing the current state of HAPE research and treatment. High Altitude Pathology Institute (Popularity: ): High altitude travel advice. Information on chronic mountain sickness, high altitude pulmonary edema, the use of hyperoxic/hypoxic adaptation chambers, and ... Hypoxia (Popularity: ): Information about the International Hypoxia Symposium including abstracts. Medex and Medical Expeditions (Popularity: ): Information about and from this research charity dedicated to investigating the mechanisms of altitude related illness. Newsletter archive and planned ...