Why Are Chinese Young People Soaking Up the Sun on Their Backs?

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Why Are Chinese Young People Soaking Up the Sun on Their Backs?

In Traditional Chinese Medicine, the three periods of extreme heat in summer, known as 三伏天 (Sanfu Days), are considered the most prosperous times for growth and the peak of yang energy in nature. According to TCM’s holistic theory of “harmony between man and nature,” this period is ideal for replenishing the body's yang energy and treating winter diseases in summer. So, what are the specific benefits of sunbathing during this time, and how can we do it most effectively?

The Benefits of Sunbathing During Sanfu Days

Enhancing Immunity

The intense sunlight during Sanfu Days accelerates the generation of yang energy in the body. This is beneficial for absorbing ultraviolet rays from the sun, which can promote blood circulation, boost the immune system, and synthesize Vitamin D, thus preventing osteoporosis.

Detoxification and Dehumidification

Sunbathing can promote sweating, and sweat contains lactic acid, urea, and other waste products expelled from the body. This helps in the excretion of toxins, playing a role in detoxification and dehumidification.

Relieving Anxiety and Insomnia

Exposure to sunlight increases serotonin levels, which inhibit the secretion of melatonin. Both serotonin and melatonin are crucial for regulating our sleep patterns. Sunlight also helps our brains synthesize related neurotransmitters, improving anxiety and depression.

Guide to Healthy Sunbathing During Sanfu Days

When to Sunbathe

• Morning: 9:00–11:00 AM is the time for the spleen meridian to function, aiding the digestion and absorption of food. 

• Afternoon: 3:00–5:00 PM and 5:00–7:00 PM are the times for the bladder and kidney meridians, respectively. Sunbathing during these periods helps regulate body fluids and promote the circulation of kidney essence. Adjust these times slightly if the sun is too strong.

How Long to Sunbathe

• Adults: 15–30 minutes per session.

  
  

• Elderly: Slightly longer sessions are recommended as their ability to synthesize vitamins decreases with age, but avoid prolonged exposure.

  
  

• Children: No more than 15 minutes due to their delicate skin.

Where to Sunbathe

Focus on the mid-lower back area, as it is crucial for meridian flow. Specifically, the bladder meridian on either side of the spine functions like a detox channel, aiding in moisture expulsion. Pay special attention to the 大椎穴 (Dazhui acupoint) and 命门穴 (Mingmen acupoint) during sunbathing.

Who Should Avoid Sunbathing

People with the following conditions should avoid sunbathing:

• Damp-heat constitution: Prone to bad breath, dry mouth, and excessive oil secretion.

  
  

• Yin deficiency: Experiences intense internal heat and has a red tongue with little coating.

  
  

• Qi and Yin deficiency: Feels fatigued and has insufficient energy.

  
  

• Others: UV allergy, high blood pressure, high cholesterol, diabetes, coronary heart disease, and pregnancy.

Sunbathing Precautions

• Avoid direct sun exposure to the head: Use an umbrella or hat to shield the head.

  
  

• Timing: Wait half an hour after meals and avoid sunbathing on an empty stomach.

  
  

• Hydration: Drink plain water or lightly salted water after sunbathing to replenish fluids.

  
  

• Clothing: Wear light-colored, loose-fitting clothes to stay comfortable.

  
  

• Sun protection: Use sunscreen and take measures to prevent heatstroke to avoid sunburn.

  
  

• Food Sensitivity: Avoid sunbathing after consuming photosensitive foods like celery, oilseed rape, spinach, bok choy, lemon, and mango.

Post-Sunbathing Care

After sun exposure, the pores open up. It's best to change out of sweat-drenched clothes in a cool place to prevent colds. Avoid direct air conditioning and cold drinks immediately after. For those who feel hot in the upper body and cold in the lower body, it's crucial to move around 2–3 hours after sunbathing to balance internal heat.

By understanding these guidelines, you can effectively harness the benefits of sunbathing during Sanfu Days to improve your health in accordance with Traditional Chinese Medicine principles. Have you seen others sunbathing? Would you like to give it a try? Welcome to share in the comments!

Source: 潇湘晨报

Pic: 澎湃/三联

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