When Bill Gates was at Harvard, he wrote software code that helped to launch the personal computer era. Courtesy of Harvard Yearbook Publications. Bill Gates as pictured in his freshman yearbook. Gates attended Harvard from 1973 to 1975. Microsoft founder Bill Gates, who attended Harvard, returns to campus this weekend for a question-and-answer session as part of the launch of The Harvard Campaign.
1 More than 120 over 80 and less than 140 over 90 (120/80-140/90): You have a normal blood pressure reading but it is a little higher than it should be, and you should try to lower it.2  Make healthy changes to your lifestyle. Follow a healthy lifestyle to keep it at this level. 2  More than 120 over 80 and less than 140 over 90 (120/80-140/90): You have a normal blood pressure reading but it is a little higher than it should be, and you should try to lower it.
This is when the blood pressure is the greatest. The bottom number, or your diastolic reading, refers to the pressure in your arteries at all times, when the heart is resting in between heartbeats. The normal blood pressure is 120/80, although most people do not have blood pressure of exactly 120/80. Low blood pressure is much less common than high blood pressure. People with high blood pressure, or hypertension, are at risk for organ damage (kidney, and heart especially), in the long term.