There is an evidenced link between periodontitis (gum disease) and other health issues. If you have chronic inflammation you are a higher incidence of gum disease.
It might be a casual relationship between gum disease and other health issues, however we aren’t 100% sure yet. All we know is that if you have chronic inflammatory disease, your chance of having other health issues increases significantly.
So what can you do? Keep a daily routine of brushing at least twice and flossing once and ensure regular dental hygiene visits.