These are just average numbers there is more to it.
Humans, are not all cut from the same cloth, that's why it's important to put all other vitals, symptoms and conditions into consideration. Someone who is always dehydrated will have a higher heart rate and eventually a higher systolic pressure because blood is more viscous, so the heart muscle has to work harder.
My heart rate is between 48-53bpm, and my systolic BP is around 105 - 120mm Hg (at rest) but I'm also athletic, I run 4 miles (6.4km) in 32 minutes on regular bases. Someone else a 49bpm pulse rate would signal a serious health condition.
Some types of food like garlic, vasodilate blood vessels and lowers the number while others like chilli pepper, vasoconstrict blood vessels and results into the increase in systolic number.
Stress is the major cause of elevated blood pressure levels but most doctors don't want to do their due diligence in figuring out the real cause of the symptom. They just gravitate to prescribing medications to lower the numbers, as the condition worsens they increase the dosage, until they can't prescribe no more.
It's up to us (not waiting for the organizations like WHO) to educate ourselves about our bodies, lifestyle, vital signs and food we eat. That way, we can provide enough information to our doctors to better diagnose our conditions, when needed.