Heads of damages are non-pecuniary or pecuniary.
Non-pecuniary damages are often thought of as “general damages” for pain and suffering. They are most often valued by what courts have awarded to similar people with similar injuries. Experienced injury lawyers have access to electronic research databases with cases where people have gone to court and where judges have awarded compensation to them for their injuries, harms, and losses.  This research is a useful way to determine what value could be assigned to your injuries if you were to go to trial.
Pecuniary damages refer to compensation that can be calculated in monetary terms. Some of these heads of damages include past loss of income, future loss of income, future loss of income earning capacity, out of pocket expenses, cost of future care, and past and future loss of housekeeping.
If you are seriously injured, you should work with an experienced injury lawyer early in your claim to maximize the amount of compensation you can receive under all heads of damages.  Your experienced injury lawyer will hire experts to help maximize your recovery under all appropriate heads of damages.