https://www.selleckchem.com/pr....oducts/elamipretide-
In eyes closed condition, an increase of sleepiness level is associated with a decrease of the spectral electroencephalographic (EEG) power in the fast frequency rage (i.e., alpha activity) and with an increase of the power in the slow frequency range (i.e., theta activity). It was suggested that the changes in the fast and slow frequency ranges might determine two - the earlier and later - drowsiness stages preceding sleep onset, respectively. We tested whether such spectral EEG signatures of sleepiness vary with age or ge