When a child lacks yang energy, they are generally prone to catching colds, suffering from illnesses that are difficult to recover from, and may also have issues with their spleen, stomach, and kidneys. This can lead to poor appetite, vomiting, and abdominal pain. Here are some key points:

1. Susceptibility to Colds and Illnesses

Babies are born with delicate yang energy, but many infants may have insufficient yang due to congenital factors or inappropriate dietary habits, such as frequently consuming cold and raw food. During seasonal transitions, children with insufficient yang tend to have weaker constitutions than those with sufficient yang, making them more susceptible to catching colds and experiencing difficulty in recovery. Parents should focus on their child's diet and encourage them to exercise regularly, rather than resorting to unilateral supplementation.

2. Issues with Spleen, Stomach, and Kidneys

Children with insufficient yang often have poor immunity and are easily thrown off balance by external factors. Parents should avoid over-medicating their children, especially with bitter and cold herbs, which can further damage their yang energy. Instead, dietary supplementation is crucial and effective. Foods that nourish yang energy include leek, lamb, and walnuts. While some may fear causing heatiness in the summer, these foods are suitable for children with insufficient yang. Additionally, it's important to keep warm, especially in areas like joints, the waist, and feet. When indoors with air conditioning, it's advisable for children to wear long sleeves. In non-extreme heat, it's preferable to ventilate the room with natural air instead of using air conditioning. Finally, exposure to sunlight can help boost yang energy. The infrared rays are stronger and ultraviolet rays weaker between 10 am and 11 am, making it a warm and comfortable time for sunbathing. This can promote blood circulation and warmth. From 4 pm to 5 pm, the ultraviolet rays are stronger, which can aid in calcium absorption and improve overall health.