IMMUNITY

Understanding the immune system

Immunity , and other pathogens. A balanced immune system plays a vital role in protecting overall health.

When immunity is weakened or unbalanced, the body can become more susceptible to infections, fatigue, and inflammatory conditions. This page aims to help you understand how immunity works , its influencing factors, and the most common situations that can affect it.

Understanding the immune system

UNDERSTANDING IMMUNITY

What is the immune system?

The immune system is a complex network of cells, tissues, and organs that work together to defend the body. It relies on two main complementary mechanisms:

  • Innate immunity , the first line of defense, is rapid but non-specific.
  • Adaptive immunity , which is more targeted, is capable of remembering past attacks.

Proper immune function depends on many factors, including diet, sleep, stress, and digestion .

Immunity and global balance

Immunity does not function in isolation. It is closely linked to :

  • to the gut microbiota
  • to sleep quality
  • stress management
  • to the intake of essential nutrients

An imbalance in any of these areas can influence the body's ability to defend itself effectively.

WEAKENED IMMUNITY

A weakened immune system results in increased susceptibility to infections, slower recovery, or persistent fatigue. It can be linked to prolonged stress, lack of sleep, digestion , or nutritional deficiencies.

The related articles provide a better understanding of the possible causes of decreased immunity and the levers for action.

REPEATED INFECTIONS

Recurrent infections ( colds, sore throats, ENT infections) may indicate that the immune system is under significant strain or unbalanced.

The frequency of infections depends on many factors, including the state of the microbiota, the level of stress, and the body's ability to recover.

The related content explains how to support natural defenses against recurring infections.

IMMUNITY AND FATIGUE

Fatigue natural defenses.

The related articles explore the link between persistent fatigue and immunity.

IMMUNITY AND DIGESTION

A large proportion of immune cells are located in the gut. Digestion and the balance of the microbiota therefore play a key role in the proper functioning of the immune system.

Bloating, digestive discomfort or bowel irregularities can sometimes influence the immune response.

The related content explains how to support immunity through digestion.

IMMUNITY AND STRESS

Chronic stress can disrupt the regulation of the immune system. Prolonged exposure to cortisol is associated with altered immune response and decreased defense capacity.

The related articles detail the impact of stress on immunity.

SEASONAL IMMUNITY

Seasonal changes represent a period of increased strain on the immune system , particularly in autumn and winter. Temperature variations, reduced sunlight, and close contact promote the spread of infectious agents.

The related guides explain how to support immunity during sensitive seasonal periods.