Women are four to five times more likely than men to develop early-onset rheumatoid arthritis, and a few hormonal factors could be why, new research suggests. Entering menopause early (before age 45), taking hormone replacement therapy (HRT), and having four or more kids are all related to heightened odds for developing rheumatoid arthritis, the study…  read on >  read on >

Could the immune system play a role in why some women become depressed during and after a pregnancy?   Swedish researchers have uncovered a “bidirectional relationship” between pregnancy-linked depression and autoimmune diseases such as psoriasis, multiple sclerosis, ulcerative colitis and celiac disease. In other words, women who experienced depression specific to a pregnancy were more…  read on >  read on >

Teens who are active are doing their bones a lasting favor, Japanese researchers report. “Physical exercise in adolescence affects BMD [bone mineral density] more than 50 years later in older adults,” said lead researcher Dr. Yoshifumi Tamura, a faculty member at Juntendo University in Tokyo. “Our findings can guide the selection of sports played during…  read on >  read on >

An average of 22 U.S. teens die each week from drug overdoses, a death toll driven by the powerful synthetic opioid fentanyl, a new study reports. Researchers also have identified 19 “hotspot” counties where fatal ODs are occurring as much as double the national average. The overdose death rate for 14- to 18-year-olds now stands…  read on >  read on >