Second-hand smoke can easily damage the respiratory system, nervous system and organs of newborns, affecting the growth and development of newborns. Cigarettes after burning will release smoke with benzene and heavy metals, newborns in the environment of second-hand smoke for a long time, will breathe with the inhalation of a large number of toxic fumes, the respiratory mucosa damage. Nicotine in cigarettes will produce excitatory effect on the nerves, newborns long-term acceptance of neurological excitatory substances stimulation, will have an impact on the development of the nervous system. In addition, the harmful substances in the smoke may reach the heart, liver, kidneys and other tissues and organs through the blood circulation, causing certain damage to these tissues and organs. Secondhand smoke is very harmful, so for the sake of your own health and your children’s health, it is recommended to quit smoking.