The question of whether the weather really aggravates one’s joint pain has existed for centuries. Some scientists say the link between the weather and the pain is highly subjective, meaning that the connection is psychological.

But some doctors including Song Sang-ho, a chief surgeon at Wellton Hospital in Seoul, believes that changes in temperature, humidity or atmospheric pressure could cause pain for patients with arthritis.

It all starts with low blood circulation, the doctor says. The body tries to store energy if the temperature drops in the winter, resulting in less blood flow.

“If the knee area gets less blood flow, the muscles and ligaments supporting the joints become stiff and it increases stress on the joints,” Song said.

The cold winter also lowers the circulation of joint fluid, which acts as a cushion that reduces friction between bones. The flow of joint fluid deactivates, causing more friction between bones and causes pain for the patient, the doctor said.

“When the weather gets cold, patients with arthritis should consider their blood circulation. Arthritis patients in particular should put on extra layers of clothing before going out to keep joint fluid warm and circulating,” he said.

Taking hot showers and baths as well as the use of heating pads help activate blood flow in the winter, he added.

Not only temperature but also atmospheric pressure and humidity are linked to joint pain.

The reason why patients feel pain during the summer rainy season summer despite the high temperature is because the atmospheric pressure drops, making joints expand and press against surrounding nerves. If humidity rises, the pain worsens because the joints retain moisture.

One of the best ways to relieve joint pain is to exercise, Song said, suggesting 30 minutes, 3-4 times each week. Having strong muscles and ligaments can ease the pain. But patients should avoid physical activities that put pressure on joints. Swimming, aquarobics, biking or jogging may help.

By Cho Chung-un (christory@heraldcorp.com)