Fig. 1
From: Variability of temperature measurements recorded by a wearable device by biological sex
A Heatmap of % of male (red, top) and female (blue, bottom) individuals in sleep per hour during the example week of April 11, 2020 to April 18, 2020. B Mean ± standard deviation of hourly temperature deviation over 300 females (blue) and 300 males (red) covering a single week (mean line ± standard deviation fill). C Temperature maximums for two females (blue apparently cyclic: solid; apparently acyclic: dashed) and one male (red) over 3 months. D Hierarchical clustering performed to classify individuals as cyclic or acyclic using dynamic time warping distance of autocorrelation of nightly temperature maximum. E Autocorrelation profiles for individuals within each cluster resulted in classification of individuals as cyclic, acyclic, and cyclic for clusters 1, 2, and 3, respectively. F Heatmap of 3 months of nightly maximum temperature data 10 cyclic female (chosen from the 300 for their rough cycle alignment to illustrate the cyclicity), acyclic female, and acyclic males. G Mean and standard error of the 26- to 32-day power band from the wavelet power spectra generated from temperature max data for each category (cyclic females: blue; acyclic females: teal; males: red)