What you don't know could hurt your sex life—many turn to toys or magazine tips, but the real key might lie in understanding ...

while male mice did not. This sex-specific difference suggested that female mice rely more on T-regs to manage pain. "It was both fascinating and puzzling," said Kashem, who co-led the study with ...

Scientists from UC San Francisco have discovered the female hormones estrogen and progesterone ... female mice became more sensitive to pain, while male mice did not. This sex-specific ...

We fact-check various aspects of two of President Donald Trump's executive orders targeting transgender people.

Female hormones can suppress pain by making immune ... female mice became more sensitive to pain, while male mice did not. This sex-specific difference suggested that female mice rely more on ...

Female hormones can suppress pain by making immune cells near the spinal cord produce opioids, a new study from researchers ...

Disabling the T-regs showed an immediate effect: compared to their male counterparts, female mice became significantly more sensitive to pain, highlighting the importance of these immune cells in ...

found that the two hormones work together to direct immune cells located near the spinal cord. These cells then make their own painkillers — namely, an opioid called enkephalin. The opioids are ...

Importantly, the animals soon regain their fertility when the medicine is stopped. The drug also causes no significant changes in three hormones important for sperm production: testosterone, FSH, or ...