THERMOREXIN

Thermorexin is a stimulant and does contain caffeine so it can make your heart beat faster. However, I don’t think that something really bad will occur, because I know my heart rate/BP will lower while I keep cutting, so this shouldn’t be something that lasts too long. I am not in any position to opine on your specific situation, especially regarding questions about really bad things happening to your heart. If you're really concerned about this, ask a doctor.

Like any stimulant Thermorexin can slightly raise BP, however because its not abeta agonist (its effects are down stream metabolically) the effect is minimal. However the most important things when it comes to BP and any stimulant is electrolytes. raise your potassium and watch your sodium intake. according to the RDA (which is low end in my opinion) you are supposed to get 4800mg of potassium and 2400mg sodium. so ideally you want your pottasium intake at least twice your sodium intake.

if you take potassium pills (which are limited by law to 100mg) dont take more than 2 at a time and spread them throughout the day.

if you are worried about your heart add 750mg magnesium/day and 2-4 grams of ALCAR (acetyl-l-carninitine)

agree, with anything if you really dont feel comfortable or sure ask your doctor. if you take something and have expectations of problems, they are more likely to occur (placebo applies to side affects too- the mind is a powerful thing). So its important with any supplement you feel comfortable.

note- wieght gain from a bulk will generally raise both BP and heart rate