Hi, My father is 66 yrs old and having problem of lower blood pressure, Although he hv a very healthy schedule like wake up early around 4AM, go fr a walk, come and do yoga for an hour and also taking healthy food like dalia in brkfst, normal dal rice in lunch and that too not very heavy, but all the his time bp is around 68  112, 70  108... Can someone help in knowing the reason and also what to eat or what to do for balancing the same.