1. Skin damage. Generally, skin enters its nighttime repair phase between 10 PM and 2 AM. Prolonged late-night activities disrupt the body's normal endocrine and nervous system cycles. Nervous system imbalance can lead to dryness, loss of elasticity, and dullness in the skin; while endocrine imbalance may cause acne, pimples, melasma, and dark spots.Increase intake of cooling foods like melons, apples, millet, and Job's tears. Additionally, limit spicy foods and alcohol at dinner, opting instead for fresh juices or soy milk.
2. Weakened immunity. Among the various harms caused by staying up late, the most common is persistent fatigue, lethargy, and reduced physical resistance.For those with weaker immunity, this makes them susceptible to respiratory illnesses like colds and digestive disorders affecting the gastrointestinal tract. 3. Memory Decline. Daytime effects of staying up late include lethargy, mental fogginess, impaired memory, poor concentration, slowed reactions, forgetfulness, dizziness, and headaches. Prolonged sleep deprivation can lead to neurasthenia and insomnia.Expert advice: If work necessitates staying up late, limit it to once or twice a week at most. Additionally, night shift workers should prioritize rest during day shifts rather than scheduling other tasks. Four: Yin deficiency with excessive heat. For night owls, the body operates under excessive strain, making functional disorders common. Traditional Chinese medicine attributes this to yin deficiency with excessive heat—commonly known as "heatiness." Night owls also frequently experience gastrointestinal issues like indigestion.
5. Vision Deterioration. The harm of staying up late to the eyes goes far beyond just developing "panda eyes." Prolonged, excessive eye strain can cause pain, dryness, swelling, and even lead to dry eye syndrome. Generally, this eye condition is more common in young to middle-aged men and often occurs suddenly after an all-nighter.
Say Goodbye to the Habit of Staying Up Late
Don't overlook indoor air quality.
Since nights are generally cooler, ensure proper ventilation and maintain adequate humidity indoors while staying up late.
Avoid relying on caffeinated drinks for alertness. While caffeine may boost energy, it depletes B vitamins. Individuals already prone to fatigue due to B vitamin deficiency risk creating a vicious cycle.

Night owls should eat meals on schedule, ensuring dinner is nutritious, light, and not overly filling. If snacking during late nights, opt for warm foods. After pulling an all-nighter, eat a substantial breakfast and avoid cold foods.
Sip a cup of Lily and Jujube Seed Tea before bed—for sweeter dreams. Lily, Longan, and Jujube Seed Tea: Combine 20g each of lily bulbs and sour jujube seeds, 15g each of poria and longan, and 10g each of goji berries and wheat. Simmer in a clay pot with hot water for one hour before drinking.For convenience, opt for Longan Lily Jujube Seed Tea bags. Drink one cup before bed—you'll drift off in just over ten minutes. Regular consumption can overcome insomnia. Insomnia Relief Principle: As one of the "Four Divine Herbs" for treating insomnia, this tea nourishes the liver, calms the heart, and soothes the spirit.