Mind & Mood Archive

Our internal clocks regulate the sleep-wake cycle, and light establishes when we should feel wakeful or sleepy. Light exposure at night affects these natural processes, so researchers studied whether wearing an eye mask while sleeping might help learning and alertness.

Ketamine has been used for decades as an anesthetic, and in 2019 an inhaled version of it was approved by the FDA for treatment-resistant depression. But it is generally prescribed only when other treatments have not been effective.

Many efforts to improve health are also good for the brain. A study of nearly 400,000 people led researchers to develop a scorecard assessing 12 factors that contribute to the risk of dementia or stroke, making it easy to see where you're doing well and where you might do better.

A 2023 study found that people with depression who attended at least one "hot" yoga session per week for eight weeks had significantly reduced depression symptoms, compared with people who did not perform hot yoga.

Everyone goes through periods when they feel low, lethargic, or stressed. These episodes usually pass after a while, but if symptoms linger or begin to interfere with daily life, people should seek professional help. Otherwise, people can take several steps to boost their mood, such as exercising more, spending time outdoors, volunteering, meditating, and keeping a gratitude journal.

A 2023 study found a link between excess abdominal fat and lower brain volume, particularly in regions involved in thinking, memory, and performing everyday tasks.