Your first name of Ruaidhri has created a practical, patient, scientific nature able to concentrate on the finer details of a project or undertaking. You would function best in settled conditions where you are not called upon to meet and mix too closely with others, but are able to work on your own. You restrict your association to a few and usually they are people who understand your independent, quiet personality. You are not impulsive, for you like to plan and to think ideas through before acting. It is difficult for you to find lasting happiness in association because you are exacting, fixed in your ideas, and inclined to be secretive. Your endurance and persistence enable you to carry your activities through to completion. A lack of fluency in your verbal expression may appear as bluntness. Although you are stable and trustworthy in your own work, you lack the confidence to assume responsibilities for others. You may also experience some deafness. Other health problems could affect the lungs, heart, or bronchial organs.