No 98.6 here!! Today my temperature was (about) 98 on my mercury thermometer and 97.9 on my electronic thermometer — which I bought recently to check on my mercury thermometer. Conditions: no breakfast today; but I woke up hungry; ate some cashews, chicken, and humus late last night (10:30 or 11:00 PM) before bed; went outside for some exercise this morning between about 9:40 and 10:20 AM: a mix of slow jogging, fast jogging, walking and running; had a shower before taking my temperature, but had nothing to drink. I have no idea how long I ran or how far. The temperature record says the temperature outside was 72 F with a relative humidity of 75% at 9 AM; conditions were 77 F and 63% at 10 AM. On 2-20-09 my temperature was 97 F at 11:25 AM. Then it was 96 F at 9:50 PM (on my new electronic thermometer), but 97.2 at 10:20 PM on mercury thermometer, after leaving it in for about half hour. I must not have had my electronic under my tongue right, given that the temperatures were consistent today; I had been wondering if one of the thermometers was off. On 2-24 in the evening (around 5) my temperature was 98. If I would have left the thermometer in my mouth longer, maybe I’d have added a bit to that. The mercury thermometer seems to work slow. I wonder if one’s body temperature is lower on EF/Paleo. Flour and sugar cause inflammation, which might cause a rise in body temperature. Seems plausible in my ignorance; I’m no expert like Dr. Cordain, Dr. Eades, Stephan, or Art DeVany. I don’t know all the biochemistry and physiology involved. Update (2:10 PM): A reader says “I just read one of The Zone books by Barry Sears and he mentioned lowered body temp. as a result of lower insulin levels.” Interesting.