I always feel cold these days, but it's not cold at all, is it?

First, strengthen physical exercise.

Especially those who often sit still or often stand, we must pay attention to intermittent exercise, usually do more activities of hands, feet and waist to strengthen blood circulation.

Second, pay attention to diet.

We might as well eat more warm food at ordinary times to improve our cold tolerance. Common foods are cattle, sheep, dogs, chickens, garlic, peppers, ginger, onions, yam, longan and so on.