What causes blood pressure of 130-140 in one's twenties? Is this normal?

definitely not normal..

not enough sleep, high intake of fatty food, work stress...

Nobody will tell you it's normal.

And the top can vary depends on diet and exercise.

Provide the bottom reading, if it's >80, see a doc for advise.

Hello essential hypertension

Change to a healthy lifestyle.

exercise more... at least 3 times a week.
i lazy... so i adopting this:- everytime i am in a building where the place i am going is lower than 10 floors.. i take the stairs.

i trying intermittent fasting too to reduce my blood pressure.

heya arch, so .. how has it been working for you, the 3x week and intermittent fasting? Did you manage to balance your BP to a regular(consistent) healthier reading?

Fastest way to lower BP is by improving blood flow in your vessels. You can google Nitric oxide dump workout, you will see immediate results.

For a more sustainable outcome, you should workout on your muscles more and Burpees help a lot too. Other workouts not so much

not normal

Not normal, sleep is important, avoid oily food too

Kidney failure

Few of my cousins has high blood pressure too, seems they inherited from my uncle. eventually it gets worst with drinking and smoking

Hi, is blood pressure 143 / 85 considerred normal during pre-vaccination blood pressure test?
Had tested borderline high several times during various clinic visits. Might it be anxiety during clinic visit?

White coat syndrome, which people sometimes call white coat hypertension, is when a person develops high blood pressure, or hypertension, when they are around doctors, who often wear white coats.[Source]

The only reason I even know about it is because my SIL (in medical line) told me I am the opposite of White Coat (which i thought was just something made up for banter, but is apparently a thing)- "masked hypertension" is normal blood pressure in the doctor's office but high readings outside of the office. Masked hypertension is easy to miss, and can occur during the day or night. [source.]