Blood pressure is defined as the pressure of blood in the circulatory system, relating to rate of heartbeat. High blood pressure, also known as hypertension, means that the heart is having to work harder to pump blood around the body.

Blood pressure is defined as the pressure of blood in the circulatory system, relating to rate of heartbeat. Hypertension, or high blood pressure, means that the heart is having to work harder to pump blood around the body.

Less salt may not actually be better for us, according to a study published in the American Journal of Hypertension.

A study of kidney cells has offered some clues as to why people get high blood pressure.

A US study has found that obesity in teenage girls has more of an impact on blood pressure than for teenage boys.