An easier way to do high-intensity interval training

A 2023 study found that people with chronic conditions who took part in high-intensity interval training in the water—called aquatic HIIT or AHIIT—experienced a similar boost in endurance (their maximum sustained physical exertion) as people who took part in land-based HIIT. An AHIIT workout includes a warm-up, such as treading water, followed by intervals of rest and intense activity (such as swimming laps or doing four or five pool exercises in a row, as quickly as possible), for a total of 30 minutes.

One more reason to brush your teeth?

New research suggests that people who are hospitalized in an intensive care unit are far less likely to develop pneumonia if their teeth are brushed twice daily. They also need ventilators for less time, are able to leave the ICU more quickly, and are less likely to die in the ICU.