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In the journals: Seniors get no brain boost from omega-3 supplements

A recent study in The Journal of the American Medical Association found that seniors got no mental boost from taking daily omega-3 fatty acid supplements and antioxidant vitamins for four years. On the other hand, that doesn't mean eating a nutritious diet throughout life doesn't promote healthy aging.

The clinical trial involved more than 3,500 people, average age 73. Researchers were primarily testing the ability of daily nutritional supplements to prevent vision loss from age-related macular degeneration (AMD), which damages the light-sensing retina in the back of the eye. Participants also had tests of their mental function every other year in addition to annual eye exams.

Is your medication making you depressed?

When starting a new medication, keep a journal to track any new symptoms that develop. Note the time of day, date, and type of symptom you are experiencing. 
Image: Thinkstock

Be on the lookout for mood swings, sleeplessness, and anxiety when starting certain medications.

Can depression worsen RA symptoms or make treatment less effective?

Depression is fairly common among people suffering with rheumatoid arthritis (RA). Recent research suggests that depression may worsen RA symptoms and even make medications less effective. To date, the studies that indicate a connection between the severity of RA symptoms and depression have not been conclusive, so more research is needed. In the meantime, if you have RA and notice signs of depression, be sure to talk with your doctor.

If you think you’re depressed, don’t wait — find out

October 8, 2015 is National Depression Screening Day, which is the embodiment of Dr. Douglas Jacobs’s belief that screening for mental disorders should be no different than screening for other physical illnesses. If you think that you may be suffering from depression, take the first step and find out. Treatment can improve your mood, help you feel more connected, and feel more like yourself again.

A mindful worker is a happier worker

The mental health benefits of mindfulness meditation include greater engagement in your daily activities and a more positive outlook — which can in turn improve your concentration and sense of well-being. But can mindfulness practice really help employees’ mental health? A recent study says yes. Workers participating in mindfulness training found they experienced less stress, anxiety, and depression; improved sleep; fewer aches and pains; and fewer problems getting along with others.

Low-nicotine cigarettes may help determined smokers cut back

A study examining the effects of low-nicotine cigarettes on smoking behavior yielded surprising results. The study volunteers who smoked the low-nicotine cigarettes actually smoked less and had fewer cigarette cravings than those who smoked cigarettes with a higher level of nicotine. Although more research is needed before we can draw any conclusions, it’s possible that very-low-nicotine cigarettes might be a way to mitigate the health dangers of smoking for people determined not to quit.

3 ways to harness positive psychology for a more resilient you

Image: iStock

Some intriguing research suggests that positive psychology can help you weather the routine ups and downs of life and also build resilience for times of greater difficulty.

Here are three ways to capture the benefits of positive psychology.

Vigorous exercise may counter cognitive decline in early Alzheimer's

Reports at the Alzheimer's Association International Conference in July 2015 verified that women are at higher risk than men for developing Alzheimer's, and also progress more rapidly from mild cognitive impairment to out-right dementia than men do. But not all the news was bad. A study reported at the meeting indicates that physical exercise can halt, and even reverse, the decline in people with mild cognitive impairment.

In that study, conducted by researchers at Wake Forest University in North Carolina, 65 previously sedentary women and men with mild cognitive impairment exercised at peak capacity for at least 45 minutes four times a week for six months. At the beginning and end of the study, researchers tested participants' cognitive skills and examined their blood and cerebrospinal fluid for levels of tau protein—a principal component of the amyloid plaques associated with Alzheimer's disease. They found that the participants scored significantly higher on the cognitive tests at the end of the study than they had at the beginning. Their tau protein levels had declined substantially as well.

Exercise: A promising treatment for dementia?

Image: Thinkstock

We know that moderate-intensity exercise, such as brisk walking, can both improve thinking skills and slow their decline in older age. Now a trio of studies presented at the July 2015 Alzheimer's Association International Conference suggest that aerobic exercise may even be able to help protect your brain from Alzheimer's and other dementias, and improve your quality of life if you have the disease. One study of 200 adults with Alzheimer's showed that those who engaged in three hour-long exercise sessions a week for 16 weeks had less anxiety, irritability, and depression and better mental speed and attention compared with those who didn't exercise. A study of 65 sedentary older adults with mild cognitive impairment showed that those who took part in 45 to 60 minutes of aerobic exercise four times a week for six months not only had better attention and planning skills, but also better blood flow to the brain and a reduction in dangerous proteins associated with Alzheimer's disease, compared with those who only did stretching exercises. A study of 71 older adults with cognitive impairment due to vascular disease found that those who did an hour of aerobic exercise three times per week for six months improved their thinking skills, memory, and attention compared with those who did not exercise. Although the studies were presented at a scientific meeting, it's only after publication of the full details that scientists can adequately judge a work. Nevertheless, the studies are in line with past research showing that regular exercise may help protect the brain.

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