Not Medical Advice: Yes. A blood pressure of 118/80 is in the "normal" blood pressure category.
According to Heart.org, your blood pressure rises with each heartbeat and falls when your heart relaxes between beats. While BP can change from minute to minute with changes in posture, exercise, stress or sleep, it should normally be less than 120/80 mm Hg (less than 120 systolic AND less than 80 diastolic) for an adult age 20 or over.
Here's a blood pressure chart reflecting categories defined by the American Heart Association.
The top number, systolic, which is also the higher of the two numbers, measures the pressure in the arteries when the heart beats (when the heart muscle contracts).
The bottom number, diastolic, which is also the lower of the two numbers, measures the pressure in the arteries between heartbeats (when the heart muscle is resting between beats and refilling with blood).
Tips! Here are 10 ways to control high blood pressure without medication, shared by the experts at Mayo Clinic.