Hello Dear, Thanks for contacting HCM I must first compliment you on changes in life style you have adopted like vegan diet, exercise and stationary walking. Now coming back to Blood pressure reading of 110/40 you are having, i would recommend you to do self monitoring of Blood pressure (BP) at least 2 times a day at different times of day for 5 days, one can use these BP readings to come to a conclusion. Regarding reading of 110/40, your upper blood pressure (systolic- measures the pressure in arteries when the heart beats) reading is normal but lower BP reading (diastolic- measures the pressure in arteries between beats) of 40 mm Hg is low. A systolic blood pressure reading of 90 mm Hg or less or a diastolic reading of 60 mm Hg or less is generally considered low blood pressure (hypotension). Two circumstances typically can result in extremely low diastolic blood pressure. 1- Severe hypotension- number of medical conditions may cause severe hypotension including heart problems which prevent circulation of blood in body, underactive thyroid (hypothyroidism) or overactive thyroid (hyperthyroidism), adrenal insufficiency (Addison s disease) and low blood sugar (hypoglycemia) beside other conditions. Some medications may also cause hypotension. Other conditions, including dehydration, blood loss, significant infection and a severe allergic reaction may cause severe hypotension. But these disorders usually cause a sudden, dramatic and temporary drop in blood pressure, rather than a sustained low blood pressure reading over time. 2- profoundly stiff arteries that occur due to aging, diabetes or fatty buildup in the arteries (atherosclerosis). So i would like to know whether or not you are taking any medications, are there any other symptoms like palpitation (unusual awareness of ones heart beat), sweating, unusual weight loss or increase in weight, cold or hot intolerance, decrease or increase in appetite and family history of any chronic disease like diabetes and hypertension. If your diastolic blood pressure is consistently below 60, and you aren t experiencing problems as a result, treatment might not be required. If low blood pressure is causing symptoms such as dizziness, light-headedness or fainting more investigation may be required to know the cause. What you can do to increase your BP is to take normal amount of salt, drink plenty of water and use compression stockings. Hope this has helped you Regards