A new study from the University of Southern California indicates that stress–whether from traumatic events, work, or discrimination–speeds up aging in the immune system, which increases the risk of cancer, cardiovascular disease and infection. The researchers measured social stress levels against immune cell counts. People with the highest stress scores had significantly lower percentages of fresh disease fighters and higher percentages of worn-out white blood cells.…
A new study from Japanese researchers published in Scientific Reports found that listening to music with a groove (music that causes the sensation of wanting to move to the rhythm/beat) can significantly increase measures of executive function. This first study of its kind used both brain imaging and measured individual psychological responses to “groove music” and found that music with a groovy beat impacted cognitive…
A new metareview published in the highly-respected JAMA Psychiatry reveals that even modest exercise (less than recommended by public health guidelines) can have a major impact on mental health. Just 2.5 hours a week of brisk walking was related to a 25% lower risk of depression–and the biggest benefits were seen when moving from none to some activity (rather than moving from moderate to high…
Psychedelics have shown promise in treating diverse mental health disorders, but exactly how they rewire the mind remains a mystery. A small 2022 study from Imperial College in London provides some answers. Patients with severe depression were given either psilocybin or a popular antidepressant (escitalopram). The researchers used functional magnetic resonance imaging to measure brain activity pre-dose and three weeks after. The results were enlightening:…
A new study from Northwestern University found that sleeping in even the dimmest light for one night (such as leaving the TV on or exposure to streetlights through a window) significantly impaired cardiometabolic function: increasing nighttime heart rate and next-morning insulin resistance. The researchers concluded that even when your eyes are closed, your brain knows that lights are on, with dim light activating the sympathetic…
A recent metareview of studies from the Salk Institute found that eating your daily calories within a consistent window of 8-10 hours is a powerful strategy to prevent and manage chronic diseases such as diabetes and heart disease. The study found that eating at random times messes with the synchrony of our internal circadian rhythms which makes us prone to a host of diseases—and that time-restricted…
