It is natural to be cold in the wintertime. The problem is other people can cope with cold well, but some can't stand coldness at all. Let us think about how to make warm or hot. We need kindling to light a fire for firewood. There is a case of no lighter to make a fire. There is also air tight space. Even though there is a fire, this fire is extinguished because of lack of oxygen.
Our body equals to this. When we have weak function lungs, we can't breathe in enough oxygen, making less energy to burn and body cold. When we have more oxygen, meaning more energy to use will make body warm. As lung is weak, we are exposed to cold easily and experience short of breath. Bronchitis, bronchial asthma and bronchopneumonia including allergy might follow due to weak lung function. Acupuncture treatment will help patient to breathe better. There is no better way to treat acute symptoms than acupuncture. There is almost no side effect with acupuncture compared to most medicines. If there is phlegm, acupuncture will remove phlegm. We also distinguish what make breathing difficult between breathing in and breathing out.