Which health consequence is most likely associated with significant alcohol consumption as a young teen?

Significant alcohol consumption during the adolescent years can have numerous detrimental effects on health, one of which is low bone density. This is particularly important during the teenage years, a critical period for bone development. Adolescents experience rapid growth and bone mineralization, making the consumption of alcohol especially harmful as it can interfere with this process. Alcohol can disrupt the bones' ability to absorb calcium and other essential nutrients, ultimately affecting bone density. This can lead to an increased risk of fractures and other bone-related issues later in life.

In contrast, increased muscle mass, improved academic performance, and enhanced social skills are outcomes that are generally considered to be positively associated with healthy behaviors and lifestyles rather than alcohol consumption. Alcohol can impair physical development, cognitive function, and social interactions, illustrating how its excessive use during crucial developmental years can adversely affect youth health and well-being.