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Exercise reduces Alzheimer's risk in people with predisposition
suggests that daily walking or jogging may reduce the risk of developing Alzheimer's disease or at least helps to change the course of the disease. The analysis was led by scientists at Washington University in the United States. The survey had 201 people between 45 and 88 years old. Although some had a family history of Alzheimer's, they all underwent memory and logic tests and did not present any clinical symptoms of the disease. Since Alzheimer's is associated with plaque deposits called b-amyloids (Ab) in the brain, the experiment was started with a CT scan that identified signs of these plaques in the volunteers. A gene named apoE, involved in cholesterol metabolism, was also analyzed as, as reported in the British Journal of Sports Medicine
a year ago, variation of this gene increased up to 15 times the risk of developing the disease. After the examinations, 56 volunteers had vari- ation of the apoE gene.
Everyone then completed a detailed questionnaire about their exercise habits in the last 10 years. The results showed that volunteers who walked or jogged regularly (30 minutes for five days of the week) had fewer amyloid plaques than those who did not train, but the difference was not significant. However, for those who had the modified gene and therefore a larger deposit of plaques, the exercises proved to be quite effective, since they indicated a number of amyloid plaques similar to those without the modified gene. Alzheimer's disease neurodegenerative, and incurable disorder that causes decline in intellectual functions, reducing work and social skills, and interfering with behavior and personality. Follow Alzheimer's Traces Before It Becomes Alzheimer's
a silent disease, which is gradually revealed. But a study, published by researchers at the San Francisco VA Medical Center in the United States, has mapped the six major risk factors for dementia: sedentary lifestyle, alcohol use, depression, smoking, diabetes, middle-aged hypertension, and obesity. Next, experts discuss the relationship between these factors and give you tips for better health and protection against Alzheimer's.
1. Hypertension
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In a setting of hypertension, the intensity with which the blood circulates ends up causing lesions in the vessels, including those of the brain (more sensitive). "Damaged, they end up bringing less blood, oxygenation and nutrients to the brain," says psychiatrist Cássio Bottino, from the Institute of Psychiatry at the Medical School of USP. Brain tissue is very dependent on blood oxygenation and may lose capacity if vascular failures occur.
2. Smoking: Another factor pointed out in the research is smoking. "The cigarette accelerates the process of neurological aging and cerebral atrophy, which aggravates the chances of Alzheimer's," says geriatrician Yolanda Boechat, coordinator of the Center for Reference to Care for the Elderly at UFF-RJ. In addition, it is possible that the risk is increased because of small cerebrovascular infarctions that increase the death of neurons, caused by the toxins present in the cigarette. 3. Alcohol
: The consumption of more than two daily doses of alcohol, regardless of the drink, increases the chances of having neurological disorders by almost 10%. Otherwise, the chronic alcoholic suffers from the loss of brain tissue, that is, the brain shrinks over time and aggravate problems such as forgetfulness and loss of recent memory. But drinking a daily dose of alcohol (and this varies by drink) can slow the onset of Alzheimer's, according to a study by Loyola University in Chicago.Prevent Alzheimer's disease
4. Physical Activity, In addition to combating obesity and other risk factors pointed out by the study, bathes the brain with endorphin. This hormone is an antioxidant capable of cleaning the brain and eliminating free radicals, combating cell aging. "Regular physical activity also contributes to the blood supply to neuronal cells, improving connections and thinking," says the doctor. Yolanda. According to researchers at the Rush University Medical Center in Chicago, elderly people should practice 2.5 to 5 hours of physical activity per week.
Muscle Contracture: Causes, Treatments and How to Avoid
A muscle contraction occurs when there is a continuous and involuntary contraction of a muscle or some fibers of it. When the muscle contracts in the wrong way and does not return to its natural state of relaxation, the contracture appears. The affected region may increase in volume, present pain, and / or impair the mobility of those experiencing the problem.
Five Sports Champions in Burning Calories
The combination of exercise and a balanced diet is essential for weight loss . However, many people still have doubts about which exercise is best for burning more calories, and so the Spanish Association of Sports Sciences has created a rating. Researchers explain, however, that the variables of each person, such as the metabolism, height, weight and the intensity of exercise, make it more difficult to establish an absolute value.