Can Stress Affect Your Body Temperature?

You may associate stress with a racing heart, tense muscles, or difficulty sleeping. But can stress also affect your body temperature?

The answer is yes. Stress can influence body temperature in subtle but noticeable ways. While it does not usually cause a true fever linked to infection, it can lead to temporary changes in temperature readings.

Understanding how stress affects your body helps you interpret temperature changes more accurately.

How the Body Responds to Stress

When you experience stress - whether emotional or physical - your body activates the “fight-or-flight” response.

This response triggers:

• Release of stress hormones such as adrenaline and cortisol

• Increased heart rate

• Changes in blood flow

• Altered breathing patterns

These physiological changes can influence how heat is produced and distributed in your body.

Can Stress Raise Your Body Temperature?

In some cases, stress can cause a mild increase in body temperature. This is sometimes referred to as stress-induced hyperthermia.

Unlike a fever caused by infection, stress-related temperature changes:

• Are usually low-grade

• May fluctuate throughout the day

• Often return to normal once stress levels decrease

Some people may notice slightly elevated temperature readings during periods of anxiety, emotional distress, or prolonged tension.

Can Stress Lower Your Body Temperature?

Stress does not always increase temperature. It can also lead to:

• Cold hands or feet

• Sensations of chills without infection

• Fluctuating temperature readings

This happens because stress can alter blood circulation, redirecting blood flow to essential organs and away from the skin.

Stress, Anxiety, and “Feeling Feverish”

You may sometimes feel warm, flushed, or feverish during intense stress - even when your temperature reading is within normal range.

This sensation can result from:

• Increased heart rate

• Hormonal shifts

• Heightened body awareness
  

It is important to confirm changes with an accurate temperature reading rather than relying only on how you feel.

When Is It Not Just Stress?

While stress can influence temperature readings, a persistent temperature of 38°C or higher is generally considered a fever and may indicate infection or another medical condition.

Seek medical advice if elevated temperature readings are accompanied by:

• Persistent cough

• Severe headache

• Shortness of breath

• Rash

• Ongoing fatigue

Monitoring patterns over time helps distinguish temporary stress-related changes from possible illness.

How to Reduce Stress-Related Temperature Fluctuations

If stress appears to be influencing your temperature readings, consider:

• Practicing slow, deep breathing

• Engaging in gentle physical activity

• Improving sleep routines

• Limiting caffeine intake

• Creating moments of daily relaxation

Managing stress supports overall wellbeing - including more stable physiological responses.

The Importance of Consistent Monitoring

To better understand how stress affects you:

• Take temperature readings at similar times each day

• Use the same method consistently

• Rest for at least 5 minutes before measuring

• Record your readings and note stress levels

Looking at trends rather than isolated values provides clearer insight.

Awareness Supports Better Health Decisions

Stress can influence many systems in your body, including temperature regulation. Mild, temporary changes are often part of your body’s natural stress response.

By combining accurate temperature readings with an understanding of your stress levels, you can respond more confidently and know when further evaluation may be needed.

At OMRON Healthcare, we believe that informed home monitoring empowers you to better understand your body and support your long-term health.

This content has been reviewed and approved by a cross-functional team at OMRON Healthcare Europe to ensure the information provided is accurate. Approval Code: OHEAPP-1082