But piping is believed to increase the lung capacity of emphysema and bronchitis patients.
These movements are believed to increase the flow of blood and lymph and to enhance absorption.
Insulin in excess is also believed to increase the risk of type 2 diabetes and heart disease.
EPO, or Epogen by its brand, is believed to increase the number of red blood cells by allowing more oxygen to enter the muscles, reducing fatigue.
Through its potential to push up blood pressure, a surfeit of salt is believed to increase the risk of heart attacks and strokes.
While it is not known exactly how the genetic variant promotes weight gain, it is believed to increase the appeal of high-calorie foods and reduce the feeling of fullness after a meal.
And about 20percentt of the operations no longer require stopping the heart and attaching patients to an external pump, thus eliminating a step believed to increase the risk of strokes in the sickest patients.
Cardiac glycosides are believed to increase the force of cardiac muscle contraction by binding to and inhibiting the action of a membrane enzyme that extrudes sodium ions from the cell interior.
As The Irish Times wrote in April: "The increase in burglaries is also believed to increase the fear of crime among the public because of the randomness of the crime".
Just how much they are at risk is not certain, but beginning in May, by order of the European Union, European airlines will begin treating their flight crews as radiation workers, teaching them about the effects of low-level radiation doses -- which are believed to increase the risk of cancer and of birth defects -- and monitoring their exposures.
For the research, investigators tallied the results of dozens of studies about the effects of exercise on the so-called fat gene, which is believed to increase the risk that carriers will be overweight or obese by 12 percent or more.
