Indiana University-Purdue University Indianapolis has published an interesting study suggesting that physical activity can help older adults deal with pain.
Participants who logged higher levels of vigorous activity reported lower pain response to painful stimuli, and those who maintained light activity throughout the day reported they were able to better tolerate pain.
The study was published in PAIN (2017; 158 [3], 383-90)
You can find the article I read, here: "Exercise and Pain Perception in Older Adults." IDEA Fitness Journal May (2017): 13. Print.