Health professionals are unanimous: “The risk of serious respiratory infections increases sharply after 65 years.” The culprit is a natural weakening of the immune system, a phenomenon known as “immunenescence.”

“What exactly is going on?”

Understanding Immunenescence

• The body produces “fewer antibodies” when faced with viruses and bacteria.
• Immune cells “react more slowly”, giving infections more time to settle.
• Vaccines are “less effective” because the body struggles to generate an optimal immune response.

Result: “Infections that heal more difficult and degenerate more often into serious complications” like pneumonia or chronic bronchitis.

Chronic Diseases Aggravate the Situation

From the age of 65, many people suffer from “chronic diseases” that further weaken the organism. “These pathologies make respiratory infections much more dangerous.”

⚠️ The main comorbidities that increase the risk:

• ✔ “Diabetes”: alters the body’s ability to fight infections.
• ✔ “BPCO (Chronic obstructive bronchopneumopathy)”: reduces respiratory capacity and promotes pulmonary infections.
• ✔ “Heart failure”: weakens the body and slows down the healing process.
• ✔ “Renal diseases”: decrease the elimination of toxins and weaken immunity.

In these cases, “A simple virus can cause hospitalization and put the life of the patient in danger.”

Less Visible Symptoms, But a Very Real Danger

In young adults, respiratory infection is often accompanied by fever, coughing, and a feeling of intense fatigue. “In seniors, these signs are sometimes absent or more discreet” which complicates the diagnosis.

“Alert signs for those over 65”:

• An unusual shortness of breath, even without coughing.
• Extreme, unexplained fatigue.
• Disorientation or vigilance disorders.
• An absence of fever despite an infection.

These symptoms can “delay management”, further increasing the risk of complications.

How to Protect Yourself Effectively After 65

“Vaccination, an essential shield.”

• Vaccine against the flu: Recommended each year to reduce the risk of complications.
• Pneumococcal vaccine: recommended from 65 to prevent bacterial pneumonia.
• COVID-19 vaccine: essential to avoid the serious forms of the virus.

“Adopt good reflexes to preserve your immunity.”

• Favor a diet rich in vitamins and antioxidants (Fruits, vegetables, fatty fish).
• Exercise regularly to maintain good pulmonary capacity.
• Avoid contacts with sick people, especially in winter.
• Ventilate your interior every day to limit the proliferation of viruses.

A CAP at Close Up

After 65 years, “The body loses effectiveness in the face of respiratory infections”, making prevention essential. “Do not underestimate a simple cold or a persistent cough can make the difference between rapid healing and hospitalization.”

“If you or a loved one are over 65, be vigilant and adopt the right reflexes to protect yourself throughout the year!”

Additional Insights and Practical Applications

Recent studies have shown that the immune system’s decline is not just about quantity but also about quality. The body’s ability to produce high-affinity antibodies, which are crucial for fighting off infections, diminishes over time. This is why even common illnesses like the flu can become severe for older adults.

For instance, during the 2017-2018 flu season, the Centers for Disease Control and Prevention (CDC) reported that adults aged 65 and older accounted for the majority of flu-related hospitalizations and deaths. This underlines the importance of annual flu vaccinations and other preventive measures.

Moreover, the COVID-19 pandemic has highlighted the vulnerability of older adults to respiratory infections. Studies have shown that older adults are more likely to develop severe symptoms and complications from COVID-19, further emphasizing the need for robust preventive measures.

Experts recommend that older adults and their caregivers stay informed about the latest health guidelines and vaccinations. The CDC and other health organizations regularly update their recommendations based on the latest research and data. For example, the CDC now recommends that adults aged 65 and older receive the pneumococcal vaccine, which protects against bacterial pneumonia, a common and serious complication of respiratory infections.

Additionally, lifestyle changes can significantly boost immunity. Regular physical activity, a balanced diet, and adequate sleep are crucial for maintaining a strong immune system. For those with chronic conditions, managing these conditions effectively can also help reduce the risk of infections.

In summary, while the body’s defenses against infections weaken with age, there are several effective strategies to mitigate this risk. By staying vigilant, following health guidelines, and adopting a healthy lifestyle, older adults can significantly improve their resilience against infections.