Nearly half of adolescents and three-quarters of adults in the U.S.^[1] were classified as being clinically overweight or obese in 2021. The rates have more than doubled compared with 1990.

Without urgent intervention, our study forecasts that more than 80% of adults and close to 60% of adolescents will be classified as overweight or obese by 2050. These are the key findings of our recent study, published in the journal The...

Spices bring up feelings of comfort, cultural belonging and holidays^[1]. They can make our homes smell amazing and our food taste delicious^[2]. They can satisfy our cravings, expand our culinary horizons and help us eat things that we might normally dislike. Spices have health-enhancing properties^[3] and, in medicine, have been used to heal people since the ancient times^[4].

Recently, however, spices have been getting a bad...

Everyday physical activity, like going for a short walk or playing with the kids, may provide short-term benefits for cognitive health, equivalent to reversing four years of cognitive aging. That was a key finding for my colleagues and me in our new study^[1], which was published in the journal Annals of Behavioral Medicine.

Prior to enrollment into a study of diet and dementia risk^[2], we asked a diverse sample of 204...