Ask HN: Best method of reducing finger fatigue from typing?

I'm a 25 year old dude. I run and lift weights. My body is in good shape, but my fingers are getting worn down from 8+ hours of daily typing (coding, emails, chat, note taking, etc). Using a computer becomes more of a burden when I'm using the touchpad on a laptop.

I try stretch every finger individually but nothing seems to help. My fingers just feel exhausted and typing becomes unpleasant. Not sure if there's something I can do to remedy this or if I need to seek medical attention.