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> More strenuous workouts closer to bedtime coincided with greater disruptions to sleep and nighttime cardiac activity.

My wife wants to know what kind of "strenuous workouts closer to bedtime" exactly are alluded to here?

Duration of the activity might be a factor here.

Given the challenges involved in replication of studies like these, I certainly wouldn't let this one example change your established routines.

“Honey, we’re in the test group for the RTC!”