[froggy]

I can vouch for deadlifts. Had wrist tendonitis flare-ups first at age 29 while doing lots of coding for a newly launched product. I'm 43 now and haven't had a flare-up in over 6 years (been doing heavy coding since 28yo). I do deadlifts once heavy a week, sometimes will add in an extra light set during the week. If you're starting out with deadlifts, be sure to check out a program like Starting Strength and practice correct form before adding heavy weight.

Things like bench press and working with heavy dumbbells have probably helped too since the weight forces your hand, wrist, and arm muscles to strengthen. I have also used a hand-held grip squeeze device which has helped over the years when I had flare-ups.

[namanyayg]

I tried those squeeze devices too, but in my opinion they're too weak unless you specifically shell out for the stronger / adjustable ones. Mine were from China and didn't do jack for the rsi pain.

It's deadlifts that whips forearms into shape, and then getting used to various presses seems to make the wrist more adaptable. I started with Phrak's Greyskull LP which is a modification on SS with less volume.

Back, shoulder, and neck pain disappears too.