Yeah, that one sounds weird on the face of it. If anything would have an effect, I'd guess the relative absense of nicotine in people would be a big part. Tho

Yeah, that one sounds weird on the face of it. If anything would have an effect, I'd guess the relative absense of nicotine in people would be a big part. Though I thought nicotine _causes_ blood clots, it's possible that that's a chronic effect and the acute effect would prevent them, I'm not sure.