those living with arthritis as climate can create increased pain to joints whilst changes also occur to exercise routines.
Many arthritis sufferers claim they can predict rainfall due to the level of pain in their joints. A recent study conducted in the US explains why. The study focused on patients with chronic pain, surveying if individuals feel an increase in pain when changes in weather occurs.
"67.9 percent of the people surveyed responded that they were sure changes in the weather had an effect on their pain. Most of the patients reported that they can feel a change in their pain before rain or cold weather occur," said Robert Jamison, Professor at the Harvard Medical School and chief psychologist at the Pain Management Center at Brigham and Women's Hospital, Chestnut Hill.
Jamison revealed however that the factor that may be responsible for increased pain is not snow, cold or rain, but actually, a change in barometric pressure. Barometric pressure (atmospheric pressure) is the force exerted onto a surface by the weight of the atmosphere at any given point. As a storm system develops, the barometric pressure begins to drop.
Jamison explains the impact of barometric pressure on the body through a test conducted with a balloon. "When a balloon is inflated, it has the maximum inside and outside pressure. High barometric pressure that pushes against the body from the outside keeps tissues from expanding." As the barometric pressure falls, tissues in the body may expand. As the tissues expand, they put more pressure on nerves that control pain signals.
"It doesn't take much expansion or contraction of tissue to affect a pain trigger," Jamison said. Therefore even individuals who live in drier climates also reported feeling more pain with weather changes.