2007). Spectral analysis of systolic blood pressure variability showed a significant reduction in the LF/HF power ratio in GHS‐R KO mice, which was most prominent over a 24‐h period (P < 0.05, Fig. 1D). Spontaneous baroreflex sensitivity (sBRS) was unaltered by GHS‐R deficiency (Fig. 1E). The gene discussed is GHSR; the disease is hyperinsulinemic hypoglycemia, familial, 4.