The reasons for the susceptibility to a decrease in immunity at the change of seasons: changes in temperature, activity of viruses, etc.

When the seasons change, many people are more susceptible to colds and fatigue, which is closely related to a weakened immune system. The change of seasons can lead to large changes in temperature, a large temperature difference between morning and evening, and the body needs to constantly adapt to the environment, which can put a greater burden on the immune system. According to statistics from the Hong Kong Health Bureau, the rate of cold visits in spring and autumn is more than 30% higher than in other seasons, indicating that the change of seasons is indeed a time when immunity is weak.

In addition to temperature changes, the virus is also especially active at the change of seasons. For example, the influenza virus survives longer in an environment of 15-20 ° C, and spring and autumn are in this temperature range. In addition, at the change of seasons, the humidity of the air changes significantly, and the mucous membranes of the respiratory tract are prone to dryness, which weakens the protective ability of the first line of defense of the human body. Factors such as the fast-paced and stressful lifestyle of modern people, combined with an unbalanced diet, exacerbate the problem of weakened immunity at the change of seasons.

It is worth noting that Hong Kong, a cosmopolitan metropolis, has a high risk of virus transmission due to its high population density and high mobility. According to a survey of salaried workers in Hong Kong, more than 65% of respondents have experienced cold symptoms at least once during the change of seasons. These data convey the importance of understanding the causes of weakened immunity during the change of seasons and taking appropriate precautions to maintain good health.

The importance of seasonal health care: prevent colds and improve immunity

Seasonal medicine is not only about tackling current health threats, but also about laying the foundation for good health throughout the year. The immune system is like the body's defenses, which must be constantly maintained and strengthened. Numerous studies have shown that people who regularly maintain immunity not only have fewer frequent colds, but also reduce the duration of colds by 40-50%. For today's busy workers, this means fewer sick days and more productivity.

Prevention is better than cure, and this is especially true when it comes to seasonal health care. A cold may seem trivial, but it can have a ripple effect, including delayed work, sleep quality, and even serious complications. According to the Hong Kong Hospital Administration, more than 70% of annual cold-associated pneumonia cases occur during the change of seasons. This highlights the need for active medical care at the turn of the season.

There is another benefit that is often overlooked: it is to reduce the use of antibiotics. Excessive use of antibiotics can lead to resistance problems, and a strong immune system helps the body fight the most common viruses naturally. A study by the University of Hong Kong found that people who take antibiotics regularly are 35% less likely to use antibiotics than the general population. This has important implications for both individuals and public health.

Seasonal Health Care Focus: Warmth, Diet, Rest, Health Products

Effective seasonal care requires a multi-pronged approach, and here are four key areas:

• Warm:In particular, protect your neck, back, and feet, which are prone to cold. Hong Kong is located in the subtropics, but the rainy weather and cold weather in spring and autumn are not to be missed.
• Diet:Eat foods rich in antioxidants, such as darkened vegetables, fruits, and whole grains. Hong Kong people have a high rate of eating out, and they need to pay more attention to nutritional balance.
• Rest:Getting enough sleep is a great opportunity for your immune system to recover. It is recommended to maintain 7-8 hours of quality sleep every day.
• ：Proper supplementation of appropriate supplements of scientifically proven and effective health supplements, under the guidance of doctors and nutritionists, can compensate for the lack of daily diet.

These four aspects complement each other and are indispensable. For example, even if you do your best, if you don't get enough sleep for long periods of time, the effect will be greatly reduced. The Hong Kong Nutrition Association suggests that special attention should be paid to these details of life during the change of seasons and that a comprehensive health protection net should be established.

Seasonal health care is recommended

Vitamin C: strengthens immunity and reduces the duration of colds

Vitamin C is the most classic immune nutrient and can promote the function of white blood cells and increase the body's ability to fight viruses. Several clinical studies have confirmed that regular vitamin C supplementation can reduce the risk of colds by 50% and shorten the duration of colds by 1-2 days. In a fast-paced city like Hong Kong, that means getting back to routine sooner.

The recommended daily intake of vitamin C for adults is 100-200 mg, but it can be increased to 500-1000 mg in the early stages of colds and during the prophylactic period. When choosing a vitamin C supplement, it is recommended to opt for a formula with the addition of bioflavonoids for better absorption.

Echinacea: strengthens immunity and prevents colds

Echinacea is an herbal immune supplement widely used in Europe and the United States, the active ingredient of which stimulates the proliferation of immune cells and improves overall immunity. A study of secondary school students in Hong Kong showed that students who took echinacea for 8 weeks had a 42% lower incidence of colds than the control group.增強免疫力保健品

Echinacea is especially suitable to take 2-3 weeks before the change of seasons as a preventive health condition. In general, it is recommended to take it for 2-3 months and then take it off for 1 month to maintain the best results. When choosing to ensure the quality of the product, it is necessary to pay attention to the standardized extract content.

Elderberry: antiviral, relieves cold symptoms

Elderberry is rich in anthocyanins and antioxidants, which have the effect of directly inhibiting the replication of viruses. Pharmacological studies at the University of Hong Kong have found that elderberry extract can block the entry of the influenza virus into cells, and can significantly reduce symptoms when consumed in the early stages of the cold.

Elderberry is especially suitable for use when there are already signs of a cold, and it is advisable to choose a standardized extract product to ensure the concentration of the active ingredient. Its effect is even more pronounced when combined with vitamin C.

Propolis: antibacterial, antiviral, immunity-boosting

Propolis is a resin blend collected by bees, which contains more than 300 active ingredients and has broad-spectrum antibacterial and antiviral effects. Experiments conducted by the Hong Kong Institute of Traditional Chinese Medicine have shown that propolis has a significant inhibitory effect on common respiratory viruses and can regulate the balance of the immune system.

Propolis products come in a variety of forms, including capsules, sprays, and drops. For those who have throat irritation, propolis spray can act directly on the affected area to provide quick relief. When choosing, you need to pay attention to the purity of the product and not add too many artificial ingredients.

Precautions for taking health products: pay attention to the dosage and choose the usual brand

Although it has health benefits, it should still be used with caution. First of all, pay attention to the dosage, an overdose of certain nutrients may lead to side effects. For example, long-term consumption of high doses of vitamin C can cause diarrhea, and excess zinc can affect copper absorption.

When choosing a health supplement, you should give preference to reputable and legitimate brands and check whether the product has the relevant certifications. Health products registered with the Hong Kong Health Bureau will be numbered "HKC-XXXXX", which is a basic quality assurance. In addition, special populations, such as pregnant women and patients with chronic diseases, should use health supplements under the guidance of a medical professional.

Finally, it is important to note that supplements are healthy lifestyle supplements and cannot replace a balanced diet and good lifestyle habits. Establishing regular work and rest, getting proper exercise, reducing stress, and cooperating with scientific choices are the best strategies for seasonal health care.

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