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Can brain training smartphone apps and computer games really help you stay sharp?

A large number of apps and computer programs claim to help keep the mind sharp and improve memory. Since there is limited evidence that these programs bring cognitive benefits, be skeptical of these claims and choose the ones that you enjoy. Meanwhile, practice proven brain-protecting strategies such as staying physically active, eating a healthy diet, socializing, and avoiding brain-harming habits such as drinking excess alcohol, getting too little sleep, and using illegal drugs.

The facts on fat and heart health

Dietary fat can both help and hurt heart health, depending on the source. Eating adequate amounts of the "good" fats—monounsaturated and polyunsaturated—can help reduce cholesterol levels and lower blood pressure. "Bad" saturated fat found in many processed foods can have the opposite effect. Following heart-healthy diets like the Mediterranean and DASH diets and making small substitutions in daily eating habits can ensure people get the proper amounts of good fats.

Drinking coffee and tea linked to lower stroke risk

People who sip several daily cups of both coffee and tea may be less likely to have a stroke than people who don't drink either beverage.

Five hours of weekly exercise linked to fewer cancer cases

A study published online Oct. 4, 2021, by the journal Medicine & Science in Sports & Exercise found that about 46,000 U.S. cancer cases per year can be attributed to getting less than 300 minutes of moderate-intensity exercise per week.

Exercise may heal the heart as well as prevent future problems

Exercise may help to reverse some types of heart damage. Not only can workouts prevent heart problems, but it may help to improve conditions that may raise risk for cardiovascular events. A 2021 study, for example, showed that a yearlong exercise program helped improve heart health in people who were at increased risk for heart failure.

Is there such a thing as a silent stroke?

It is possible to experience a stroke without symptoms. Addressing cardiovascular risk factors can help lower the risk.

Managing memory slip-ups

After a certain age, most adults encounter nagging and sometimes embarrassing memory lapses. While recurring or worsening memory issues always should be checked out, everyday lapses—like recalling names, finding everyday items, and remembering appointments, errands, and even online passwords—can be managed with some simple strategies.

Salt substitute associated with lower rates of stroke, death

A large study published online Aug. 29, 2021, by The New England Journal of Medicine found that people who used a salt substitute on their food had a lower risk of stroke, heart attack, and early death, compared with people who used regular salt.

How can mindfulness practices help with migraine?

Many common medication treatments for migraine can cause side effects, underlining the need for more tolerable treatments. Mindfulness practice has been associated with improvement in people with chronic pain, including migraine. A study investigated whether mindfulness-based stress reduction techniques provided benefit for people experiencing migraine.

Saturated fat and low-carb diets: Still more to learn?

Low-carbohydrate diets have been popular for many years, but due to the high amounts of saturated fat, doctors and nutritionists worry about possible increased risk of cardiovascular disease. A study comparing three diets found that eating a high-fat diet did not necessarily raise heart risk, but the types and quantities of food make a difference.

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