Systolic blood pressure is the top number in a blood pressure reading, and it measures the pressure in your arteries when your heart beats. A high systolic blood pressure reading can be caused by several factors, including:

• Artery stiffness: As you age, your arteries become stiffer and less elastic, which can cause your systolic blood pressure to go up.

• Overactive thyroid (hyperthyroidism): An overactive thyroid gland can cause an increase in blood pressure.

• Diabetes: High blood sugar levels can damage blood vessels and lead to an increase in blood pressure.

• Heart valve disease: Heart valve problems can cause an increase in blood pressure.

• Obesity: Being overweight or obese can increase your risk of developing high blood pressure.

Its important to note that having a high systolic blood pressure over time can increase your risk of developing serious health conditions, such as heart attack, stroke, kidney disease, and heart failure. If you have isolated systolic hypertension, which is when only your systolic number is high, your doctor may prescribe medication to help bring it down. Additionally, lifestyle changes such as regular exercise, a healthy diet, and limiting alcohol and sodium intake can also help manage high blood pressure.