Ghrelin is secreted mainly in the stomach. It stimulates appetite and increases food intake. Leptin is a hormone, synthesized primarily in fat cells, that has been shown to decrease food intake and increase energy expenditure.
Propane gas does not have an effect on breathing by itself, but displaces oxygen from the air making it hard to breathe. If enough oxygen is displaced, a person could asphyxiate. If the exposure to propane gas is minimal, there are little to no symptoms if inhaled. If oxygen is displaced from the air because of high quantities of propane gas, symptoms that are present are rapid heart rate, clumsiness and fatigue. The longer the exposure occurs, the less oxygen will be present, and symptoms such as vomiting, convulsions and even death can occur.
It occurs when air from CPAP enters the esophagus and in to the belly, rather than the airway and in to our lungs. This can cause gas pains and distension of the stomach. It is common and can happen to anyone who uses CPAP. But when it becomes chronic, itâs a red flag, a symptom that can be overcome when the cause is properly determined.