g*2 发帖数: 658 | 1 http://health.yahoo.net/articles/healthcare/photos/5-ways-runni
1. Running helps your brain grow.
Don't worry -- we're not talking bursting-through-your-skull growth. Running
stimulates the creation of new nerve cells and blood vessels within the
brain, an organ that tends to shrink as a person ages. Also, studies have
shown that running may help increase the volume of the midbrain (which
controls vision and hearing) and the hippocampus (which is linked to memory
and learning).
2. Running helps your brain age better.
In addition to preventing or reversing age-related shrinkage, running
affects brain chemicals in a way that sets runners up to have healthier-than
-average brains later in life. A study last year measured neural markers and
cognitive function in middle-aged athletes and non-athletes, and while the
cognitive function scores were the same, researchers found the athletes'
brains showed greater metabolic efficiency and neural plasticity.
3. Running boosts your ability to learn and recall information.
Another 2012 study found that at least moderately fit people did better on
memory tests than those who were less fit (or not fit at all). This adds to
earlier research that links running to a better ability to focus, to juggle
multiple tasks, and to make distinctions.
4. Running conditions your brain to store more fuel.
You already knew that training conditions your muscles to store more fuel,
but a recent study suggests that your brain adapts in the same way.
Researchers believe these larger glycogen stores in the brain may be one of
the reasons running boosts cognitive function.
5. Running, especially in nature, helps keep your brain full of feel-good
chemicals.
Exercise promotes the release of the feel-good chemicals called endorphins.
Additionally, like many antidepressant medications, running helps your brain
hold on to mood-boosting neurotransmitters serotonin and norepinephrine.
For best results, run in quiet, green spaces instead of on crowded streets -
- a study last year found people in parks experienced brain activity similar
to that seen during meditation, while people on streets experienced
frustration. | d****r 发帖数: 2912 | 2 Good luck!
Running
【在 g*2 的大作中提到】 : http://health.yahoo.net/articles/healthcare/photos/5-ways-runni : 1. Running helps your brain grow. : Don't worry -- we're not talking bursting-through-your-skull growth. Running : stimulates the creation of new nerve cells and blood vessels within the : brain, an organ that tends to shrink as a person ages. Also, studies have : shown that running may help increase the volume of the midbrain (which : controls vision and hearing) and the hippocampus (which is linked to memory : and learning). : 2. Running helps your brain age better. : In addition to preventing or reversing age-related shrinkage, running
| g*2 发帖数: 658 | 3 thank you
【在 d****r 的大作中提到】 : Good luck! : : Running
| d******0 发帖数: 22800 | 4 最后一个太搞了。。原来繁忙的大街上跑,能越跑越郁闷啊。其实,街跑找到合适的时
间,也能很宁静平和的,比如凌晨2点。繁忙的街道一个人都没有,感觉像给外星人袭
击后把人都吸走了一样。环境宁和的确容易跑跑高兴起来,路过居民区给浇草的水滋湿
了一腿,都觉得很凉爽,赚到了便宜。 | M*****a 发帖数: 7122 | | g*2 发帖数: 658 | 6 这个月有篇文章有关高血糖和痴呆,所以血糖保持在低水平,可能有助于保持大
脑的健康。当然,如果太低也不好,特别是有糖尿病的人。
Glucose Levels and Risk of Dementia
N Engl J Med 2013; 369:540-548August 8, 2013DOI: 10.1056/NEJMoa1215740
Background
Diabetes is a risk factor for dementia. It is unknown whether higher glucose
levels increase the risk of dementia in people without diabetes.
Methods
We used 35,264 clinical measurements of glucose levels and 10,208
measurements of glycated hemoglobin levels from 2067 participants without
dementia to examine the relationship between glucose levels and the risk of
dementia. Participants were from the Adult Changes in Thought study and
included 839 men and 1228 women whose mean age at baseline was 76 years; 232
participants had diabetes, and 1835 did not. We fit Cox regression models,
stratified according to diabetes status and adjusted for age, sex, study
cohort, educational level, level of exercise, blood pressure, and status
with respect to coronary and cerebrovascular diseases, atrial fibrillation,
smoking, and treatment for hypertension.
Results
During a median follow-up of 6.8 years, dementia developed in 524
participants (74 with diabetes and 450 without). Among participants without
diabetes, higher average glucose levels within the preceding 5 years were
related to an increased risk of dementia (P=0.01); with a glucose level of
115 mg per deciliter (6.4 mmol per liter) as compared with 100 mg per
deciliter (5.5 mmol per liter), the adjusted hazard ratio for dementia was 1
.18 (95% confidence interval [CI], 1.04 to 1.33). Among participants with
diabetes, higher average glucose levels were also related to an increased
risk of dementia (P=0.002); with a glucose level of 190 mg per deciliter (10
.5 mmol per liter) as compared with 160 mg per deciliter (8.9 mmol per liter
), the adjusted hazard ratio was 1.40 (95% CI, 1.12 to 1.76).
Conclusions
Our results suggest that higher glucose levels may be a risk factor for
dementia, even among persons without diabetes. (Funded by the National
Institutes of Health.) |
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