1, the simplest way to bask in the sun and raise it. It's best to sit in the back of the sun, because there is a meridian that can't be ignored on the back-Du Meridian. Du meridian is known as "the sea of Yang pulse", and Du meridian is full of Yang. When the back is warm and comfortable, the human body's yang will be sufficient. The best time to bask in the sun is between 10- 1 1 in the morning, when the sun is abundant and the light is soft. The length of sunbathing can vary from person to person, with young and middle-aged people 1-2 hours and old people's 30 minutes. Never bask in the sun through the glass, it will be difficult to achieve the ideal effect. 2. Soaking feet can not only keep warm, but also promote blood circulation throughout the body. By stimulating dozens of acupoints on the feet, you can adjust the body's yin and yang qi and blood. 3, drinking porridge is the easiest to digest and absorb, and it is also the easiest to turn into qi and blood, reducing the burden on the human intestine. You can drink four kinds of porridge to tonify kidney-yang in winter. Recommended Buyang porridge: longan chestnut porridge, yam mutton porridge, medlar mutton porridge, fairy porridge and so on.