This condition states that Xander's body temperature is normal. The human feels a little warm. It is due to the various metabolic activities that takes place inside human body.
Not everyone has the same body temperature. The normal body temperature is 38°C. But this can be a bit higher in case of children.
The temperature of the human does not stays same all day. It varies according to the work you do and the time of the day.
Umm im a Christian and dont believe in the big bang but i do like to help people but the best one is the Radiation is detected in every direction due to the discovery in the 1960s of cosmic microwave background radiation.