SBS's 'Three Perspectives' will cover the body's 'immune balance' and its importance in its broadcast on November 8 at 8:35 a.m. This episode focuses on the collapse of the immune system, which requires particular caution at the end of the year, and warning signals from the immune system that can easily be overlooked in daily life.

■ Immune Warning Signals Sent by the Body

MC Kim Seok-hoon mentioned the symptom of fatigue that persists even after sufficient sleep, explaining that the cause may be invisible invaders inside the body. He noted that many people are easily exposed to viral illnesses such as colds, and that everyday fatigue also stems from vulnerabilities in the immune system.

■ Immunity Was Once a 'Measure of Class and Wealth'

Science writer Kwak Jae-sik introduces the process by which humanity came to recognize the importance of immunity through dangerous treatments attempted before understanding the principles of immunity, and through experiences of overcoming epidemics. Immunity was once used as a measure of social class and wealth. The program also explains the mechanism by which immune cells remember viruses and respond more effectively to repeated attacks. However, if a virus takes over cells and immune cells become depleted, defenses can easily collapse.

■ Why 'Immune Balance' Matters More Than Immunity

Neurologist Jin Jae-hyun emphasized that rather than unconditionally raising immunity, what matters is 'immune balance,' which fights off enemies while protecting the body. When immune balance breaks down, cold sores can appear around the mouth and viruses may become more active. He added that reactive oxygen species generated in fierce battles between immune cells and viruses attack normal cells, so defensive substances are needed to counter them.

■ At Year's End, Beware of Gaps in the Body's Defenses

Internist Kwon Ji-eun explained that in cold, windy seasons, when respiratory viruses such as colds and flu overlap, immune cells must fight even more fiercely. As the COVID-19 virus continues to mutate, middle-aged people may face threats to their liver and vascular health due to cold weather and frequent drinking. In fact, health checkup results showed that 9 out of 10 people had gaps in their body's defenses. The emphasis is that even the young and healthy should not let their guard down and should carefully pay attention to the small signals the body sends.

Kim Seok-hoon, So Seul-ji, Kwak Jae-sik, Lee Chang-yong, Jin Jae-hyun, and Kwon Ji-eun appear in this broadcast, analyzing ways to maintain immune balance from three perspectives.