BAT UCP1 levels were lower in those with pre-existing hypertension (log UCP1 −1.57 ± 0.27 vs −0.33 ± 0.32 AU, P < .01) (Figure S2A) and in those prescribed beta-blockers (log UCP1 −2.22 ± 0.36 vs −0.57 ± 0.25 AU, P < .01) (Figure S2B). Here, UCP1 is linked to hypertensive disorder.