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  A detailed look at children's brains might show how sex and gender are different, new study says

  Sex and gender are often conflated or equated in everyday conversations, and most American adults believe a person’s gender is determined by sex assigned at birth. But a new study of nearly 5,000 nine and 10-year-olds found that sex and gender map onto largely distinct parts of the brain.

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  What a geriatric doctor wishes you knew now for healthy aging

  Longevity isn’t just about living a long life but also about living well. More than one in five Americans will be 65 or older by 2040, the U.S. Department of Health and Human Services projects.

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  RSV vaccination programs recommended for seniors: national immunization committee

  The National Advisory Committee on Immunization is strongly recommending a vaccination program against respiratory syncytial virus for older seniors and those living in long-term care homes.

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  Tampons contain lead, arsenic and potentially toxic chemicals, studies say. Here's what to know

  The average menstruating person will use an estimated 11,000 tampons, sanitary pads, panty liners and other menstrual products, experts say. What if some of those products contain heavy metals or potentially toxic chemicals?

• B.C. premier says 'zero per cent chance' for no-prescription opioid suggestion

  British Columbia Premier David Eby says there's a 'zero per cent chance' the province will implement recommendations by the provincial health officer that alternatives to opioids and other street drugs be made available without a prescription.

• B.C. rejects Bonnie Henry's report backing non-prescribed alternatives to street drugs

  A report from B.C.'s provincial health officer recommends the province expand its "safer supply" program to prevent overdoses, including allowing access to alternatives to unregulated drugs without a prescription.

• Number of Ontarians without family doctor reaches 2.5 million, college says

  There are now 2.5 million people in Ontario who don't have a family doctor, the Ontario College of Family Physicians said on Thursday. That's an increase of more than 160,000 people since the last count was released six months ago, said Dr. Jobin Varughese, the incoming president of the college.

• Sharon Stone lost US$18 million in savings after her 2001 stroke

  In an interview with the The Hollywood Reporter, the actress talked about her 2001 stroke which resulted in a life-threatening brain bleed for nine days and a lengthy recovery.

• What cognitive tests can show -- and what they can't

  Political opponents and nervous supporters are calling for Joe Biden to undergo a cognitive test. What can these tests tell us about cognitive health?

• A woman who received a pig kidney transplant plus a heart pump has died

  A woman who received a pig kidney transplant -- along with an implanted device to keep her heart beating – has died, her surgeon announced Tuesday.

• B.C. mayor sends $84,000 bill to province for ER closures due to staffing shortages

  Staffing shortages at hospitals across B.C.'s Interior have caused multiple emergency rooms to temporarily close in the past week, including in Lillooet, Merritt and Williams lake.

• N.S. emergency department deaths hit six-year high, doctors point to 'bed-blocking'

  Emergency room doctors in Atlantic Canada say "bed-blocking" and patients presenting with advanced disease that wasn't detected or cared for earlier are driving high numbers of deaths.