This observational study is looking at how early childhood experiences, both positive and challenging, might affect a child's stress levels. Researchers will measure specific stress markers in hair samples, called hair cortisol concentrations (HCC) and hair oxytocin concentrations (HOC), to understand how these experiences impact a child's well-being over time. The study aims to enroll 600 healthy children between 6 and 24 months old who live in Santa Clara, San Mateo, or Alameda County in Northern California. Success for this study means identifying these hair cortisol and oxytocin concentrations and understanding their changes over two years. The current recruitment status is unclear.

Study design

This is an observational study designed to enroll 600 healthy children. It is a prospective longitudinal study, meaning participants will be followed over time.

What's involved

You would provide hair samples at study entry and then every 6 months for up to 2 years. Parents will also complete bilingual surveys about their child's development and family factors.

Compensation

Not stated in the trial record.

Follow-up

Participants will be followed for 2 years, with hair samples and other assessments collected at 6-month intervals.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.