Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
Mikhail Gorbachev the superiority of socialist over bourgeois democracy". Gorbachev had remained close to his parents; after his father he became terminally ill in 1974, Gorbachev travelled to be with him in Privolnoe shortly before his death. His daughter, Irina, married fellow student Anatoly Virgansky in April 1978. In November 1974, Gorbachev was appointed as a Secretary of the Central Committee; he was the youngest man to ever hold such a position. His appointment had been approved unanimously by the Central Committee's members. To fill this position, Gorbachev and his wife moved to Moscow, where they were initially given an old dacha