Tip One: Warm-up activities should be adequate
In winter, the climate is cold, and all organ systems of the human body contract protectively, reducing the range of motion in joints. In addition, due to lower humidity in the outside air, people may feel stiff in their bodies and find it hard to stretch. When engaging in physical fitness exercises in winter, one should first warm up with light jogging or calisthenics until the body heats up and starts sweating slightly before fully engaging in fitness activities.
Tip Two: Ensure ventilation during indoor exercise
In winter, people always like to keep windows and doors tightly closed. However, they may not realize that a person exhales more than 20 liters of carbon dioxide per hour while at rest. Along with the breakdown products of sweat, this can severely pollute the indoor air.