Is cold weather suitable for outdoor running?
Slow blood flow in cold weather and accelerated heart rate during running will increase the burden of heart pumping in patients with cardiovascular diseases, leading to aggravation of the condition; In cold weather, muscle viscosity is very high, ligament elasticity and joint flexibility will deteriorate, and joint mobility of patients with severe knee joint injury will decrease. At this time, exercise will not only increase the burden on the knee, but also increase the risk of re-injury. For asthma patients, cold air will stimulate the respiratory tract and may induce asthma attacks. If you don't see a doctor in time, it will even cause life-threatening, so it is not suitable for running in cold weather. The strength of bones and muscles of the elderly is relatively lacking. If you have cardiovascular and cerebrovascular diseases, the risk of running in cold weather will be higher, so the elderly are not suitable for running in cold weather.