Research suggests that a certain amount of exercise per week may be associated with a longer life, with some reports indicating that as little as 90 minutes to two hours of strength training per week could be beneficial. However, there is some uncertainty about the specific duration and type of exercise required, with varying recommendations ranging from a few minutes a day to a few hours a week. The exact exercise habit that may help increase longevity is not clearly defined, but strength training appears to be a key component.