BBC presenter Derek Brockway on his cold weather joint pain

“And yet, we don’t really know what the relationship is between the various ingredients of the weather and people’s pain.”

More than 13,000 people across the UK tracked their daily symptoms in the app, which then linked to local weather conditions.

“We found that days where you had a significant increase in pain were associated with days that were more humid or had a lower pressure and also had high winds.”

Those of the kind of conditions that are most difficult for people with rheumatoid arthritis like Sadé Asker, from Cardiff.

“Last winter, I had a really bad flare,” the 30-year-old said.

“I had to go to hospital and get injections.”