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BPA is an industrial chemical used to make hard, clear plastic known as polycarbonate. It’s also used in the lining of some cans. Many hard plastic bottles no longer contain BPA, and it’s illegal to sell baby bottles with BPA in Canada. THE CANADIAN PRESS/Jonathan Hayward

Science shows that BPA and other endocrine disruptors are harmful to human health, which should incite tighter regulations

There is abundant evidence of the involvement of endocrine disruptors in reproductive dysfunction in several species, including humans.
Although the medical establishment is now recognizing that sex is not binary, society as a whole has been slow to embrace the concept. Vera Livchak/Moment via Getty Images

Not everyone is male or female – the growing controversy over sex designation

Millions of people do not fit neatly into male or female sex designations at birth, and wrong identification can set them up for a lifetime of physical and mental harm.
Women’s 800-metre silver medal winner Margaret Nyairera Wambui, left, shakes hands with gold medal winner Caster Semenya on the podium at the 2018 Commonwealth Games in Australia. Both runners have refused to take hormone-reducing drugs so they could compete at the Tokyo Olympics. (AP Photo/Mark Schiefelbein)

Sex testing at the Olympics should be abolished once and for all

Mandatory sex testing at the Olympics might have stopped in the 1990s, but the policing of high performance female athletes’ bodies is still ongoing.
Transgender medicine uses a multidisciplinary approach to help trans youth live happier lives. Sudowoodo/iStock via Getty Images Plus

I’m a pediatrician who cares for transgender kids – here’s what you need to know about social support, puberty blockers and other medical options that improve lives of transgender youth

Transgender youth have a number of research-backed medical options available to them. The multidisciplinary approach ranges from promoting family support to hormone treatments to surgery.
Caster Semenya is legally female, was from birth raised as female and identifies as a female. Jon Connell on flickr

Ten ethical flaws in the Caster Semenya decision on intersex in sport

Athlete Caster Semenya will need to take hormone-lowering agents, or have surgery, if she wishes to continue her career in her chosen events. But the decision to ban her is flawed on many grounds.
South Africa’s Caster Semenya in the moments before the women’s 800-meter final during the Diamond League athletics event in Doha, Qatar on May 3. The world champion easily won the race, but her future remains in doubt. (AP Photo/Kamran Jebreili)

The demonization of Caster Semenya continues

The great South African runner Caster Semenya may have competed in her last 800-metre race. She has been demonized for more than a decade, like many other female athletes before her.

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