YOU ARE READING physiology facts Random Physiological facts #everyday #facts #life #physiology #pinterest #proven #random #real #science #true Physology fact 8 299 4 0 by Zanoba231 by Zanoba231 Follow Share Post to Your Profile Share via Email Report Story Send Send to Friend Share Post to Your Profile Share via Email Report Story The human brain isn't fully functioning until 10 am scientists have proved that school starts too early.