a, RNAscope staining of Esr1, Vglut2 and Vgat in MPOA. Scale bar, 50um. b, Percentage of neurons in different specific categories. 80% of Esr1+ neurons were Vgat+. c, Dual-color CTb retrograde tracing of MPOA neurons projecting to VTA and PAG in Esr1-Cre::Ai14 mice. d, Images in MPOA. Arrows indicate Esr1+ (tdTomato+) neurons co-labelled with CTb647 (blue, from PAG) or CTb488 (green, from VTA). Scale bar, 100μm. e, Percentage of neurons in specific categories. 60% of Esr1+ neurons were labeled by either CTB647 or CTb488. Mean ± s.d., n = 3 animals. f, Average half-peak spike width of MPOA Vgat+ neurons for spikes evoked by current injections in NHW and HW slices. n=14 cells for NHW group and 12 cells for HW group, from 3 animals in each group. ****P < 0.0001, two-tailed Mann-Whitney test. g, Average trough voltage at different injection current amplitudes. n = 6, 6 cells for NHW and HW group, from 3 animals respectively. *P < 0.05, **P < 0.01, ***P < 0.001, two-way repeated measures ANOVA. h, Average half-peak spike width of spontaneous spikes of MPOA Esr1+ neurons in NHW (n=10 cells from 3 animals) and HW (n=10 cells from 3 animals) slices. ***P = 0.0002, two-tailed Mann-Whitney test. i, Average trough voltage of spontaneous spikes. n=10,10 cells for NHW and HW group, from 3 animals for each group. ***P = 0.0002, two-tailed Mann-Whitney test. For boxplot, centerline, mean, upper and lower end, 90 and 10 percentiles.