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Internal Tension in the Body: Causes Related to the Stress and Nervous Systems

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Melanie Al Tikriti, BSc · June 1, 2026

A state that can't simply be turned off

Many people feel constantly tense. Even in quiet moments, they feel as if they’re constantly on edge and can never switch off. They find it very difficult to simply do nothing, and yet even the smallest tasks leave them unnerved and deeply stressed. Their muscles are tense, their breathing is rapid, and their entire body is essentially on high alert. Over time, this can take a heavy toll on the body. 

How Stress Affects the Nervous System

Our nervous system allows the body to respond to various stimuli. It also regulates our activity and relaxation. These states normally alternate. When under stress, this balance is disrupted. Periods of recovery are absent. The body’s active system behaves as if it must be ready to perform at all times. This makes sense only for a short time, but if this state persists, it can become problematic. 

Internal Tension in the Body: Causes Related to the Stress and Nervous Systems

Typical Signs in Everyday Life

The body signals internal tension through various signs that are often difficult to interpret correctly. You feel tense all day long without being able to pinpoint a clear cause.

Signs include, among others:

  • Tension in the neck and shoulder area
  • Restless or poor sleep
  • rapid, shallow breathing
  • Heart palpitations or inner nervousness
  • Difficulty truly relaxing

The role of the stress response system

Our stress response is activated immediately when we perceive a stressor. This triggers processes in the body that help us remain alert and perform at our best in the short term. However, if this state remains in “standby mode,” the body cannot recover. It remains in a state of constant alertness and becomes accustomed to the ongoing tension.

Impact on Muscles and Breathing

The muscles are particularly affected by this constant state of tension. Many people unconsciously hold tension, especially in the neck, shoulders, and back. Breathing also changes. It becomes faster and shallower, which in turn triggers the body to tense up even more. This creates a cycle that can further intensify the tension.

Effects on Well-Being

When we feel tense physically, it can sometimes cast a shadow over many areas of our lives. Sleep, concentration, performance, and overall energy levels are significantly affected. You feel restless on the inside but tired at the same time. Over time, this can be really exhausting, as it consumes a lot of energy without providing the necessary rest.

Why Internal Tension Can Take Root

If the body remains in this state of tension for an extended period, the nervous system takes note and, in a sense, stores the tension. It becomes a habit. Even minor triggers can then set off a renewed sense of tension. But the body reacts even faster and more intensely, even when there’s no real stress present. 

When to Take a Closer Look

If internal tension persists for a long time and interferes with daily life, it’s essential to have it evaluated so you can take targeted steps to address it.

Here’s what to look out for:

  • Tension lasting for several weeks
  • Persistent sleep problems
  • physical symptoms such as muscle tension or heart palpitations
  • the feeling of being constantly overwhelmed

Everyday tips for more inner peace

It’s important and crucial to give your body a break with short rest periods. Even small changes throughout the day can help you find more peace:

  • Plan conscious breaks into your daily routine
  • Reduce screen time
  • Get regular exercise and fresh air
  • Develop set routines for relaxation
  • Ensure you get enough sleep
  • Learn to consciously unwind

Conclusion: Understanding and Reducing Internal Tension in the Body

Internal tension in the body often arises from an imbalance in the stress and nervous systems. As a result, the body remains in an activated state and is no longer able to return to a state of rest sufficiently. Understanding the underlying causes allows you to take targeted steps to counteract this. Even small adjustments to your daily routine can help restore balance and bring more peace in the long term. In cases of persistent inner restlessness or chronic psychological stress, seeking support from psychiatry and psychotherapy or psychosomatic medicine and psychotherapy may also be beneficial.

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Melanie Al Tikriti, BSc

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Melanie Al-Tikriti, BSc – author: Explore expert medical articles in the Leading Medicine Guide.

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