This time of year, many people start counting calories. But some people actually take that to an extreme.  

Orthorexia is a condition where people exercise hours to burn off every calorie they've eaten.

We're talking about that in tonight's Ask the Doctor segment with Katie Stout. She's the executive director of the

To speak with her about eating disorders, dial 858-2222. Lines are open from 5 p.m. to 6 p.m. tonight. 

For future questions, call 866-690-7242. They are located at 3740 Lakeside Drive, Suite 201 in Reno.