heat-induced nervous system activation shifts brown fat from storing fat to burning it
Acute stimulation of sympathetic projections to BAT downregulated genes encoding proteins promoting lipid biosynthesis (Fasn, Acsl5) and lipid transport (Ffar4/Gpr120, Fabp5) while upregulating suppressors of lipid biosynthesis (Sik1, Dusp1), indicating SNS-mediated shift toward lipid catabolism in BAT.
What this means for you
Brown fat is a metabolically active tissue that generates heat by burning stored fat rather than saving it. When heat activates the sympathetic nervous system, brown fat appears to switch its internal chemistry away from building and storing fat toward breaking it down — a shift that may support metabolic rate and body composition over time.
The published research
Distinct sympathetic projections to brown fat regulate thermogenesis and glucose tolerance
Nature Metabolism · 2026
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.