Mrs Kitchen said her husband fell on top of her as the aircraft plummeted, crushing her against an armrest. With his seat belt on or was it unbuckled? Appears to be prexisting condition that a little bit of emotional stress pushed his body beyond it's capacity to function normally. The airline will probably settle quietly out of court. 🙏 Commercial airplane cabins are pressurized to mimic an altitude of 5,000 to 8,000 feet, which results in a slight drop in blood oxygen.Increased heart rate: To compensate for less oxygen, your heart beats faster and works harder to pump blood. Dehydration: Dry cabin air causes fluid loss, which can thicken the blood and make the heart strain further. Stress and immobility: Long periods of sitting slow circulation, while travel stress can raise blood pressure. Risks for People with Heart Conditions Underlying disease: Healthy hearts easily handle these minor shifts, but narrowed arteries or weakened heart muscle may struggle with the increased demand for oxygen. Vulnerable groups: Individuals with severe coronary artery disease, unmanaged hypertension, or advanced heart failure face higher risks.