The weather is cold. What causes the body to get cold?

It may be because of the cold weather, feeling a little cold, leading to a cold or dizziness caused by insufficient blood supply to the brain. I began to feel dizzy last winter. It will be better if the weather is warm. It's only been frozen for two days this year, but I feel a little dizzy.

Suggestion: optimistic attitude, light diet, low sodium diet, drinking more boiled water and eating less fat and animal offal can resist colds and treat dizziness.