Sexuele Voorlichting - Puberty Sexual Education For Boys And Girls -1991- English.46 Link

The answer:

Puberty triggers a flood of hormones (testosterone and estrogen) that awaken sexual and romantic attraction. For many 10–14-year-olds, this feels like a "glitch"—sudden nervousness around a specific person, obsessive daydreaming, or physical blushes. The answer: Puberty triggers a flood of hormones

Pubic and underarm hair appears, and sweat glands become more active. Puberty for Boys The answer: Puberty triggers a flood of hormones

Researchers and historians frequently seek out these specific archival video files to study how reproductive health messaging, gender roles, and medical accuracy have evolved over the last three decades. The answer: Puberty triggers a flood of hormones