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Positive Psychology Archive

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When fear strikes the heart: Post-traumatic stress disorder

People with post-traumatic stress disorder (PTSD) are especially vulnerable to cardiovascular problems, including a 40% increased risk of heart attack. The amygdala, a brain structure involved in processing anxiety, fear, and stress, is overactive in people with PTSD. But these people also have decreased activity in the ventromedial prefrontal cortex, which is responsible for regulating emotions and dampening the fear response. This brain activity imbalance triggers chronic activation of the body's "fight-or-flight" response. The resulting physiological changes appear to underlie the development of atherosclerosis.

Weighing in on weight gain from antidepressants

If you're struggling with depression, the most important question about taking an antidepressant is whether it will work. But another question on your mind may be whether it will fuel weight gain. A new study provides some context.

Can a spoonful of daily olive oil ward off dementia death?

A 2024 Harvard study of more than 92,000 healthy men and women (average age 56) found that consuming about half a tablespoon of olive oil per day was associated with a 28% reduction in the risk for dementia-related death, regardless of diet quality.

Living your best life

As people face their mortality, they often focus on how to live their best life in their remaining time. Two Harvard experts-Dr. Howard LeWine and Dr. Anthony Komaroff-share advice on how they are achieving this during their golden years. Some of their suggestions include embracing the natural changes of aging, doing inspiring activities, learning to live in the moment, and finding one's sense of purpose.

A balanced approach to eating may be best for brain health

People who followed a balanced diet consisting of a good mix of healthy foods like lean meats, vegetables, fruit, and dairy, with occasional processed foods had the highest scores of cognitive function compared with other eating patterns, according to a 2024 study.

Depression more likely during perimenopause than before or after

A 2024 study suggests that women in perimenopause are significantly more likely to experience depression than either before or after this stage.

Optimism may slow women's age-related physical decline

A 2024 study suggests that optimism may help women stave off age-related physical decline.

Recognizing and easing the physical symptoms of anxiety

Anxiety can produce physical symptoms, such as headaches, stomach upset, and tightness in the chest. Sometimes this sets up a vicious cycle, in which anxiety triggers physical symptoms, and the symptoms magnify anxiety, which makes them even worse. Doing distracting tasks or relaxation exercises can help break this cycle. People should seek professional help if symptoms can't be controlled.

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