A new study says aerobic exercise can substantially lower the risk of developing Alzheimer’s disease.
According to a study published in Brain Research, regular aerobic exercise can reduce abnormal build-up of proteins known as amyloid and tau around brain cells. While the exact cause of Alzheimer’s remains a mystery, the accumulation of these harmful proteins is associated with the condition, which can lead to memory loss, confusion, and speech difficulties.
In addition to helping protect healthy brain cells, the researchers found that aerobic exercise can also restore balance in the brain. Aerobic exercise, better known as cardio, is a physical activity typically involving large muscle groups used rhythmically and repetitively to elevate one’s heart rate. Jogging, cycling, swimming, and, more recently, rucking are some of the more popular forms of aerobic exercise.
While exercise has long been linked to improved brain health, the exact mechanisms are not always clear. In one study published in the Annals of Behavioral Medicine in October 2024, researchers found that physical activity correlated with higher brain processing speed. In another recent study published in the International Journal of Behavioral Nutrition and Physical Activity, researchers discovered that exercise was associated with improved cognitive function and better memory.
The latest study using rats concluded that aerobic exercise led to a notable decrease in the harmful proteins associated with Alzheimer’s disease. Over the eight-week test, the physically active rats experienced a heightened number of healthy brain cells alongside less inflammation.
Beyond brain health, exercise delivers a whole host of benefits. Last year, The Dallas Express reported on a study that found just five minutes of physical activity each day can materially improve your blood pressure. In another study, only four minutes of high-intensity activity was found to materially lower the risk of a heart attack. In particular, women were found to experience a halving of the associated risk when they met the target.
The Centers for Disease Control and Prevention (CDC) recommends that Americans exercise 150 minutes per week.