Lauren Pelley

A growing body of research points to clear links between deep sleep and memory formation, and on the flip side, the possibility of dire consequences when someone’s sleep quality erodes over time. One new study found a decrease in deep sleep was associated with a higher risk of dementia.

More Canadians are using stimulants such as cocaine, new federal data suggests, and experts warn the trend is contributing to a high percentage of drug-related deaths.

New Canadian data reaffirms that while the vast majority of the population has likely caught the virus behind COVID-19 at least once, more than four in 10 elderly adults may have avoided infection so far — while remaining at the highest risk for hospitalization and death.

For several years, scientists have tried to untangle one of COVID-19’s persistent puzzles: Why do some people, even after mild infections, go on to develop lasting health issues? Now, fresh clues are emerging.

COVID-19, influenza, pneumococcal, and — for the first time — respiratory syncytial virus (RSV) vaccines will all be available this fall for older adults. But medical experts warn high costs and patchwork rollouts could be barriers for seniors trying to protect themselves.

New B.C. data suggests the rate of ADHD medication use among adults has gone up dramatically. Multiple experts say it’s a trend that could be improving the lives of many Canadians — though some warn it’s a double-edged sword, since these drugs can come with health risks and the potential for dependence.

In many ways, it feels like we tamed SARS-CoV-2 into submission. Yet this virus continues to circulate year-round, causing repeat infections, with few official measures still in place to curb its spread. Scientists warn the long-term toll on individuals’ health remains somewhat uncertain.

New statistics show colorectal cancer is on the rise among younger adults. No one’s sure why. But the trend is clear, so the question now is: What should Canada do about it?

Canada’s national vaccination advisory body is calling for high-risk individuals to get another COVID-19 booster shot, starting this spring.

During a bout of brain inflammation, the lines between physical and mental health began to blur for Quebec resident Frank Parent as he faced severe anxiety and depression in the months after his diagnosis. Studies show he’s not alone — and clinicians worry patients are falling through the medical system’s cracks.