The Science Behind Heat Therapy and Calorie Burn for ASU Students
Infrared saunas can support your fitness goals by boosting circulation and burning extra calories - but they work best alongside your regular workouts. Here is what ASU students should actually expect from heat therapy sessions.
Can You Actually Burn Calories in an Infrared Sauna?
Yes - but understand what you're getting before you count on it.
What's Happening Physically
Your core temperature rises, heart rate increases, blood vessels dilate. Your cardiovascular system responds similarly to light exercise. A 30-minute session burns roughly 200-600 calories depending on body weight, temperature, and metabolism. A 150-pound person jogging moderately for 30 minutes burns about 250-300 calories. A sauna session lands at the lower end of that range for most people.
It's a supplement. Not a substitute.
What Actually Affects Your Burn
Body weight, session duration, hydration level, room temperature, and fitness level. Well-conditioned people adapt faster and may see smaller responses over time.
Where It Actually Adds Value
Recovery. Use it after a strength session or run and you'll reduce next-day soreness, get back to training sooner, and accumulate more training volume over weeks and months. That's where real body composition change happens - not in the sauna itself.
Two to three sessions per week on active recovery days or immediately post-workout. Even 20 minutes at moderate temperature delivers circulation and recovery benefits without draining you for afternoon classes or evening study.
Realistic Expectations
Infrared heat won't replace a calorie deficit, consistent training, or quality sleep. Get those right first. What it genuinely adds - reduced soreness, modest calorie burn, better sleep, lower cortisol during high-stress periods like finals. All of those support your metabolism and appetite regulation indirectly.
Before Your First Session
16 ounces of water beforehand. Start at 15-20 minutes. Skip it if you're sick, hungover, or lightheaded. Bring a towel and a change of clothes. Rehydrate with water or electrolytes immediately after.