A sedentary person who goes from doing nothing to exercising a couple of hours a week will see the greatest reductions in cardiovascular risk during this period. If they increase the amount they exercise to four hours a week, there would be additional – albeit smaller – reductions in risk (around 10%). But the benefits to cardiovascular health appear to max out after 4-6 hours a week – with no additional gains beyond this point for everyone.
Stimulant Users Are Caught in Fatal ‘Fourth Wave’ of Opioid Epidemic
The first wave of the long-running and devastating opioid epidemic began in the United States with the abuse of prescription painkillers in the early 2000s. The second wave involved an increase in heroin use, starting around 2010. The third wave began when powerful synthetic opioids such as fentanyl started appearing in the supply around 2015. Now experts are observing a fourth phase of the deadly epidemic.
Why your spin bike has become a clothes rack – and what you can do about it, according to behavioral science
Research shows a quarter of us fail to stick to our New Year resolutions after just one week and more than half within six months. At the end of two years, only 20% succeed.
Hallucinogens approved for treating psychiatric disorders: what does the science say?
Hallucinogens are now being presented as a breakthrough in the treatment of severe psychiatric disorders, such as depression or post-traumatic stress disorder, sometimes in combination with psychotherapy).
Despite being presented as innovations, the therapeutic potential of psychedelics is not a new discovery. In the 1960s and 70s, these substances were explored for medical use but quickly fell out of favour due to regulatory restrictions.
Now, in 2024, the question remains: Are psychedelics genuinely effective for treating psychiatric disorders?
Most adults will gain a pound this year – and every year. Here’s how to stop ‘weight creep’ Nick Fuller, University of Sydney As we enter a new year armed with resolutions to improve our lives, there’s a good chance we’ll…
A mouse study by researchers from the Allen Institute in Seattle provides roadmap for how aging may alter brain cell genetic activity.
For Many Rural Women, Finding Maternity Care Outweighs Concerns About Abortion Access
A study that examined nearly 5,000 acute care hospitals found that by 2022, 52% of rural hospitals lacked obstetrics care after more than a decade of unit closures. The health implications of those closures for young women, the population most likely to need pregnancy care, and their babies can be significant. Research has shown that added distance between a patient and obstetric care increases the likelihood the baby will be admitted to a neonatal intensive care unit, or NICU.
Five ways to cut your risk of cancer – by an oncologist
By adopting healthy lifestyle choices, you’re not only reducing your cancer risk but also improving your overall health and wellbeing, and you’ll probably be happier with your new self too. It’s never too late to start making positive changes that can have a lasting impact on your health.
What if you could rank food by ‘healthiness’ as you shopped?
Nutrient profiling systems use algorithms to simplify picking healthy groceries
Junk food and drug use cut into life expectancy gains for states
Bad habits such as junk food, smoking and illicit drug use are preventing longer lifespans even as technology brings major progress in diseases such as cancer and heart disease, according to a new study by the Institute for Health Metrics and Evaluation at the University of Washington.
Nine of the 10 states (all but North Dakota) with the longest life expectancies for babies born this year are dominated by Democrats, and all 10 have expanded Medicaid under the Affordable Care Act. All 10 states with the shortest life expectancies are controlled by Republicans (though Kentucky has a Democratic governor), and they include five of the 10 states that have not expanded Medicaid.
Weight loss drugs help with fat loss – but they cause bone and muscle loss too
GLP-1-based drugs such as semaglutide (Wegovy) and tirzepatide (Mounjaro) work by helping people to feel less hungry. This results in them eating less – leading to weight loss.
Studies show that these drugs are very effective in helping people lose weight. In clinical trials of people with obesity, these drugs lead to a weight loss of up to 20% body weight in some instances.
But it’s important to note that not all the weight lost is fat. Research shows that up to one-third of this weight loss is so-called “non-fat mass” – this includes muscle and bone mass.
Why do disinfectants only kill 99.9% of germs? Here’s the science
Have you ever wondered why most disinfectants indicate they kill 99.9% or 99.99% of germs, but never promise to wipe out all of them?
Why winter makes you more vulnerable to colds – a public health nurse explains the science behind the season
Many viruses, including rhinovirus – the usual culprit for the common cold – influenza, and SARS-CoV-2, the virus that causes COVID-19, remain infectious longer and replicate faster in colder temperatures and at lower humidity levels. This, coupled with the fact that people spend more time indoors and in close contact with others during cold weather, are common reasons that germs are more likely to spread.
There’s a link between walking speed and ageing well. Here’s how you can improve your pace
Various studies have found a link between low walking speed in adults over 65 and a greater risk of cognitive impairment, cardiovascular disease, falls (which could lead to fractures), hospitalisation, and even an increased overall mortality rate.
A higher walking speed, on the other hand, is associated with increased functional capacity, meaning a better ability to move around and do activities independently. It is also linked to greater longevity.
But how fast should you walk?
You could be stress eating these holidays – or eating your way to stress. 5 tips for the table
Stress eating can include binge eating, grazing, eating late at night, eating quickly or eating past the feeling of fullness. It can also involve craving or eating foods we don’t normally choose.