Most alcoholics develop alcoholism during adolescence or young adulthood. Many smokers begin during adolescence or early adulthood. Most smokers begin smoking during adolescence or early adulthood. Most tobacco smokers begin during adolescence or early adulthood. People tend to recall many personal events from adolescence and early adulthood. This is considered a period of uncertainty and experimentation between adolescence and adulthood. They often begin during puberty or early adulthood. Onset is typically in late childhood or early adulthood. It is often not noticed until late childhood to early adulthood. Persons in middle adulthood or middle age may have some cognitive loss. Onset is typically in adulthood and women are more often affected. Childhood enjoyment of dreidels has led to interest in collecting them in adulthood. Developmental psychologists investigate the development of reasoning from birth to adulthood. Males can be fertile before reaching adulthood. Many changes may occur between young adulthood and this stage.