I would be more worried about the ECA stack than the clen, just make sure you take it right.
When I did clen, and eca in between, my heart rate definatley went up, and body temp really went up.
But, I wouldnt be concerned at all unless you have existing heart problems.
ohh yeah, seems jitters and sleeplesness are common with most people I know who have taken it, so dont be alarmed.
Nicksta
Reply With Quote