Is the blood pressure range 136 ~ 64 normal?

Blood pressure 136/64mmHg is normal, but it is not ideal for your age. The ideal blood pressure of normal healthy adults is 120/80mmHg, and as long as it is not higher than 140/90mmHg, it is not hypertension. But with the increase of age, blood vessels will gradually harden, so blood pressure will gradually increase. For the elderly, if the blood pressure is around 140/90mmHg, it can also be regarded as normal blood pressure.