Hormone replacement therapy might help women avoid depression as they go through menopause, a new study finds. Women treated with hormone therapy at a menopause clinic in Ontario, Canada, experienced a reduction in their symptoms of depression, researchers report Feb. 21 in the journal Menopause. This improvement occurred whether or not antidepressants were also prescribed,…  read on >  read on >

Microscopic bits of plastic have been found lodged in tissues in much of the human body, and new research shows they are also infiltrating the placenta. All samples of placental tissue take from 62 women were shown to contain microplastics, a team at the University of New Mexico (UNM) reports. Concentrations ranged widely — anywhere…  read on >  read on >

A third of trans masculine people who have undergone testosterone therapy and have stopped menstruating are still ovulating, a new study suggests. That means they remain at risk for an unwanted pregnancy, despite the absence of periods, Dutch researchers concluded. It’s not clear why ovulation ceases for some transgender people under these circumstances, and why…  read on >  read on >

Lockdown drills have become a shudder-inducing part of American life, preparing kids to lie low and keep quiet if a gunman chooses to roam their school. But a new study finds these drills help children who’ve been exposed to violence, helping them feel safer at school. The findings contradict claims that drills traumatize children rather…  read on >  read on >

In a ruling that could drastically limit future infertility care, the Alabama Supreme Court has ruled that frozen embryos can be considered children under state law. In the decision, judges turned to what it called anti-abortion language in that state’s constitution and concluded that an 1872 state law that allows parents to sue over the…  read on >  read on >

Mercury levels in tuna haven’t changed since 1971, despite efforts to reduce emissions of the toxic metal into the environment, researchers report. Their analysis of nearly 3,000 tuna samples caught in the Pacific, Atlantic and Indian Oceans between 1971 and 2022 revealed stable mercury concentrations in tuna during those five decades. The research team specifically…  read on >  read on >