Brazil's religious right, bolstered by conservative president Jair Bolsonaro, are pushing cuts to sex education amid skyrocketing rates of HIV and syphilis.
A city council in England issued guidelines to teachers of sexual-education courses that young students should be taught "all genders" can get their period.
People that oppose open and well-rounded sex education she said, "are fueling the very social problems they say they are trying to prevent."
Activist Mommy blogger Elizabeth Johnston is urging parents to take their children out of school to protest against sex education.
"The butthole is the great sexual equalizer. All humans have a butthole."
The survey highlighted issues with misogyny and relationships among millennials, with the majority of young people rarely discussing issues of sexual consent.
A British MP said that without context children regard porn as a lesson in how to have sex.
A report has assessed the experiences of 16-24-year-old females across every local authority in England and Wales.
The watchdog said councils should also distribute the contraceptives to sexually active gay men.
Large numbers of young people experience sexual hurdles such as pain or anxiety during sex.
Majority of children and young adults are not being taught about consent, sexting and LGBT sex.
The strategy was set up to address soaring pregnancy rates among teenagers from deprived backgrounds.
Programs urging people not to have sex detract attention and resources from critical health topics that are likely to save more lives.
Professor Graugaard proposes to reinvent sex education in the classroom, an idea that divides public opinion in the UK.