As the Southern Hemisphere marks the beginning of winter on June 21st, public health officials are reminding residents to prepare for an anticipated increase in respiratory illnesses. Seasonal changes, much like other natural phenomena studied by science – such as the effects of a lunar eclipse, as discussed here – directly impact how our bodies function.
The season requires heightened attention to health, particularly for vulnerable populations like the elderly and young children, who are more susceptible to the effects of changing temperatures. Understanding these seasonal vulnerabilities is crucial for proactive health management.
According to Prof.ª Dra. Mariana Cristina Cabral Silva, a professor and coordinator of the Biomedicine course at Centro Universitário Fundação Santo André, winter conditions create an environment where respiratory viruses thrive and can worsen existing health issues in individuals with compromised immune systems.
“During the winter, people tend to spend more time in enclosed, poorly ventilated spaces, which facilitates the transmission of respiratory viruses. Lower temperatures can reduce the effectiveness of the body’s defenses, making the elderly and children more susceptible to infection,” explains the professor.
Similar patterns are observed with other viral diseases, as explored in an article discussing mpox and the role of infectology in understanding its transmission.
Common Respiratory Illnesses During Winter
The most frequently seen illnesses during this time of year include:
- flu and colds;
- bronchiolitis in children;
- asthma and bronchitis flare-ups;
- worsening of chronic respiratory conditions.
These conditions often lead to increased demand for healthcare services during colder months.
Essential Winter Health Precautions
The specialist emphasizes that simple preventative measures can significantly reduce the risk of illness. These include:
- keeping indoor spaces ventilated, even when it’s cold;
- practicing frequent hand hygiene;
- ensuring vaccinations are up-to-date, especially for the flu;
- maintaining a balanced diet and adequate hydration;
- avoiding sudden temperature changes.
For older adults and children, regular medical check-ups and prompt attention to worsening symptoms, such as persistent fever or difficulty breathing, are particularly significant.
Supporting Immune Function
The professor also highlights the importance of prioritizing immune system health during the winter months.
“A balanced routine, including a good diet, sufficient sleep, and regular physical activity, helps strengthen the immune system. Minor healthy habits can make a substantial difference in preventing illness,” she notes.
Why Do Respiratory Illnesses Increase in Winter?
Several environmental factors during winter contribute to the spread of viruses and the onset of respiratory diseases. These include:
- increased time spent in enclosed and poorly ventilated spaces;
- drier air, which can irritate the respiratory tract;
- increased survival rates of some viruses in colder temperatures;
- close proximity between people in indoor settings like schools, offices, and public transportation.
These conditions help explain why illnesses like the flu, common cold, bronchitis, and asthma flare-ups become more common during this time of year. Taking preventative steps is therefore essential.
Experts reinforce the importance of simple preventative measures, such as keeping indoor spaces ventilated, frequently washing hands, and staying current with vaccinations.
Health Education
At Centro Universitário Fundação Santo André, the Biomedical Science course develops studies and activities focused on disease prevention and public health promotion. For students interested in pursuing a career in the health field, resources like guides on discovering your professional vocation can help with academic path selection.
According to Prof.ª Mariana, understanding the effects of seasonal changes on the body is fundamental to adopting preventative strategies.
“Winter is a season that requires attention, but with information and proper care, it’s possible to navigate this period with greater safety and quality of life,” she concludes.
Institutional Information
Centro Universitário Fundação Santo André, a Municipal Public Foundation, has over 70 years of history, has educated over 100,000 alumni, and boasts more than 100 laboratories. It holds a maximum institutional score of 5 from the MEC (Ministry of Education) and offers courses in areas such as Law, Business, Engineering, Architecture, Chemistry, Computer Science, Data Science and AI, IT, Psychology, and Biomedical Science, among others. Fundação Santo André offers various scholarship programs to democratize higher education in the country.
More information: https://www.fsa.br/vestibular
