Dr. Craig Heller: Using Temperature for Performance, Brain & Body Health

Thermal regulation serves as a powerful tool for optimizing physical and mental performance by managing core body temperature. The body utilizes specialized arteriovenous anastomoses in glabrous skin—specifically the palms, soles, and upper face—as primary portals for heat exchange. Cooling these areas during exercise significantly increases work volume and reduces delayed onset muscle soreness by mitigating local muscular hyperthermia, which otherwise triggers fatigue by inhibiting temperature-sensitive enzymes. Contrary to common practices like applying ice packs to the neck or torso, which can cause counterproductive vasoconstriction, targeted cooling of these glabrous surfaces facilitates efficient heat extraction. This physiological mechanism, demonstrated in both athletic and clinical settings, offers a non-pharmacological method to enhance endurance, accelerate recovery, and maintain cognitive function under thermal stress, providing performance gains that far exceed those observed in studies of anabolic steroid use.