The Best Time of Day to Exercise for Metabolic Health – The New York Times
The exercise routines were identical, intermingling brief, intense intervals on stationary bicycles one day with easier, longer workouts the next. The exercisers worked out for five consecutive days, while continuing the high-fat diet. Afterward, the researchers repeated the original tests.
The results were somewhat disturbing. After the first five days of fatty eating, the men’s cholesterol had climbed, especially their LDL, the unhealthiest type. Their blood also contained altered levels of certain molecules related to metabolic and cardiovascular problems, with the changes suggesting greater risks for heart disease.
Early-morning exercise, meanwhile, did little to mitigate those effects. The a.m. exercisers showed the same heightened cholesterol and worrisome molecular patterns in thei...