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We all have habits we'd like to break, but the brain doesn't make changes easily. Breaking an unhealthy habit can be done; to do so, it helps to understand what's happening in the brain, know why you want to change, and accept that there will be setbacks along the way.

Although it has been known for some time that individuals with dementia frequently have poor, fragmented sleep, two new studies suggest that if you don't get enough sleep in midlife, you are at increased risk for dementia later in life.

An analysis of multiple studies looking at the relationship between high blood pressure and cognitive health –– abilities like thinking, memory, and attention –– found that older people who lower high blood pressure are slightly less likely to develop cognitive impairment or dementia.

There is evidence that antidepressants are not effective in older people with dementia. Emerging research suggests that nondrug, psychosocial interventions are the most effective treatments for depression or anxiety in older adults with cognitive impairment.

Semantic memory is your store of factual knowledge and the meanings of words. It also helps you recall nonverbal concepts and relationships between words and concepts. And while some aspects of memory may decline with age, semantic memory does not.

Of course, observing safe driving habits is a common-sense practice that can help you avoid injury, but these driving guidelines can help protect your brain as well.