There is a lack of information to really work from in your question. If your neck, back and wrists are in perfect "health" then try some grips, etc. However, in my late 40's I know I have a couple tweaked discs in my neck. Your riding position (seat height and risers or lack thereof) may contribute to your issues.
I too experience numb hands. Adding a cruise control allowed my throttle hand a break and alleviated some of the issue. My Corbin seat really exacerbated my numb hands until I put on risers. The Corbin made me "reach" for the bars, putting more pressure on my hands/ wrists. Removing the butterflys and adding a pipe seemed to increase vibration in my bars and bothered my hands. Some gel grips essentially eliminated that.
You will need to look at a combination of things combined with your particular issues, if any, to find your solution.