Science project - body temperature.......?!?

The only thing I can think of that is exciting about body temperature, is the ability of the human mind to affect it. Try having half of your subjects just THINK about doing hard exercise. Have them imagine themselves in the desert during the hottest time of the day. Sweat dripping off their foreheads. Have the other half think about being at the North Pole. Visualize the snow and think of being there in speedos. You have to talk them through the visualization. They must really concentrate. Compare the group temperatures before, during, and after. Have a control group that does no visualization and take their temperature at the same time intervals you take everyone elses.