Harvard Health Blog
A recent study that tracked healthy volunteers’ exercise and drinking habits found that they tended to drink more on days when they exercised more. But this study might have had drastically different results if conducted with different groups. For example, what results might we see if the volunteers were sedentary people looking to exercise more — or people with unhealthy drinking patterns who were working to cut back?
Ask anyone who’s ever tried to make a healthy change — after a while, the motivation to keep at it just stops. Indeed, it can be incredibly hard to break old habits, or make new ones. But research has revealed that there are actually two different types of rewards in the brain — and that focusing on the less commonly pursued of the two can help you make lasting changes.
Long-term hormonal therapy, which blocks the effect of testosterone on prostate tumors, was once reserved for prostate cancer that has spread. But recent research has found that it had enormous benefits for men with earlier stages of prostate cancer, slashing their risks of metastasis and death from prostate cancer. However, some questions remain — for example, exactly how long to use “long-term hormonal therapy” is still up for debate.
It’s natural to want to shield your children from the vitriol of this year’s presidential campaign — but think twice before you turn off the evening news. We’ve listed three ways you can turn this year’s campaign into opportunities to teach your children about the political process and even have conversations that can help them — and you — come away with a broader perspective.
Being able to react to a fall — throwing out a hand, grabbing a railing — often makes the fall less serious. But our reaction times slow as we age, making this kind of quick adjustment much harder as we get older. We’ve examined some of the biological reasons why falling becomes more serious as we age and some ways to make falling less likely — including the possibility of improving slowed reaction times.
A look into the “brain science” behind substance use disorders highlights the fact that for many people with addictions, “just say no” just doesn’t work. The biological underpinnings of addiction teach the brain to react unusually strongly if deprived of drugs, which can make recovering from an addiction incredibly difficult. Fortunately, it’s possible to teach the brain to rediscover healthier sources of joy and reward.
The CDC recently advised all sexually active women of childbearing age, and who aren’t on birth control, to avoid alcohol completely because of potential harmful effects to an unborn child. The science behind the recommendation is sound, but the way it was delivered has raised quite a few eyebrows. In this piece, Dr. Ricciotti examines where the message fell short and describes how she emphasizes shared decision-making and autonomy when she counsels her patients.
Last year, the Alzheimer’s Association predicted that rates of dementia would continue to rise. However, a report recently published in the New England Journal of Medicine found that rates of dementia have actually dropped steadily over the past three decades. Whether the drop in rates applies to everyone, and whether it will continue, remain to be seen. But the evidence also confirms that there’s quite a lot you can do to lower your dementia risk.
Pediatricians used to recommend that parents hold off on giving their children foods that commonly cause allergic reactions — peanuts, eggs, seafood, wheat — for the first few years of the child’s life. We now know that was bad advice. Recent studies have shown that giving these foods very early in life is perfectly safe — and that it actually decreases a child’s risk for some food allergies.
A recently published study confirms what many of us have already observed: the popularity of yoga in the U.S. is exploding. More Americans now practice yoga than ever before — and they’re enjoying a range of health and wellness benefits associated with it. While there are still some negative perceptions of yoga that can discourage people from trying it, there’s a lot the yoga community can do to help them feel included.