The researchers attributed 1.8 million deaths in 2019 to these unhealthy levels of urban air pollution, primarily in the form of tiny particulate matter (PM2.5) — microscopic liquid droplets or solid particles in the air that are inhalable.
People with an elevated resting heart rate of 80 beats per minute were 55 percent more likely to develop dementia than were those with a lower resting heart rate (60 to 69 bpm).