Hormonal

Activation of the NR4A nuclear receptor subgroup (specifically Nur77 and Nor-1) mediates metabolic homeostasis in skeletal muscle and liver, where its loss leads to insulin resistance, impaired glucose clearance, and lipid accumulation, while its activation enhances glucose transport and fatty acid oxidation.

This research suggests that physical activity and certain dietary components act as signals to activate NR4A receptors (like Nur77 and Nor-1) in your muscles and liver. When these receptors are active, they help your cells take up glucose and burn fatty acids more effectively. Conversely, inactivity or high-fat diets may suppress these receptors, contributing to insulin resistance. While no specific 'dose' of exercise is prescribed here, the mechanism implies that regular metabolic stress (exercise) and nutrient sensing (diet) are required to maintain this protective signaling pathway.