Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

If you have psoriatic arthritis (PsA), you may be familiar with sore fingers, stiff wrists, and the frustration of struggling with formerly simple tasks like buttoning a shirt or chopping vegetables.

Arthritis is not a single disease but a family of disorders that attack joints and the tiny, complex joints in our hands and fingers are among the most commonly affected. Two patterns are responsible ...