Everyday Immune Care to Help Prevent Seasonal Colds
Why Immunity Weakens During Seasonal Changes
When the temperature difference between morning and evening reaches around 10 degrees, the body uses more energy to regulate temperature, and dry air weakens the protective function of the nasal and throat mucosa. More than elaborate supplements, consistently keeping up basics such as handwashing, hydration, and sleep is the most reliable line of defense.
| Section | Key summary |
|---|---|
| Why Immunity Weakens During Seasonal Changes | Reason and standard in brief |
| Wash Hands and Protect Mucous Membranes | Most cold viruses are transferred to the face through the hands |
| Daily Immune-Care Basics | Drink 1.5~2L of water a day, divided into about eight 200ml cups |
| Dress in Layers | During seasonal changes, it is better to wear several thin layers than one thick garment |
| Warm Hydrating Drinks | Short key point |
| During Seasonal Changes, the Basics Are the Strongest Care | Short key point |
Wash Hands and Protect Mucous Membranes
Most cold viruses are transferred to the face through the hands. After going out, before meals, and after touching your nose, wash thoroughly with soap for at least 30 seconds, including between the fingers and under the nails. If indoor air is dry, use a humidifier or damp towel to keep humidity at 40~60% so the mucosa does not dry out.
Daily Immune-Care Basics
- Drink 1.5~2L of water a day, divided into about eight 200ml cups.
- Sleep 7~8 hours at night, and keep your wake-up and bedtime similar each day.
- Make it a habit to wash your hands with soap for 30 seconds before going out, after returning home, and before meals.
- Add a plate of colorful vegetables and fruit to at least one meal a day.
- Walk lightly for 20~30 minutes a day to warm up and move your body.
Dress in Layers
During seasonal changes, it is better to wear several thin layers than one thick garment. This lets you take off a layer when hot and put it back on when cold, helping maintain a steady body temperature. Keeping the neck, wrists, and ankles warm in particular helps reduce heat loss.
- Always keep a light cardigan or scarf in your bag.
- Wear clothing that covers your neck on cold, windy mornings.
- Adjust one layer at a time when the indoor-outdoor temperature gap is large.
Warm Hydrating Drinks
If a high fever continues or coughing and sore throat do not improve for more than a week, do not rely only on lifestyle care; see a medical professional.
During Seasonal Changes, the Basics Are the Strongest Care
Seasonal cold care should start with handwashing, hydration, sleep, and suitable clothing before special supplements. Wash your hands after going out, and if indoor air is dry, drink water often so the throat and nasal mucosa do not dry out.
Wearing several thin layers makes it easier to adjust body temperature according to daily temperature swings. If high fever, coughing, or sore throat lasts a long time, it is better not to try to get through it with lifestyle care alone.