�y��vlog

Genius then assigns the member a “biological age” — different from your chronological age in years.

Normal brain development is influenced by both puberty and chronological age, which usually act in tandem during adolescence.

Higher clock values indicate that someone’s biological age is greater than their chronological age.

Biological age can be influenced by environmental factors such as smoking or diet, thus deviating from the chronological age that is calculated using the date of birth.

Researchers say another issue with this and other trials is how chronological age and biological age might affect implications for a trial's design and its results.