"Your guess is as good as mine." (You’re probably both wrong.) "This is as good as it gets." (You want a lot better.)

It doesn't look smart to settle for just "as good as" in many situations. We suggest that's true when it comes to exercise as well.

A new study in the journal Circulation says that being a weekend warrior and getting 150 minutes of exercise on Saturday and Sunday is just as good for you as spreading your workouts throughout the week.

Although the weekend warriors always had a slightly higher risk of everything from obesity to diabetes and heart disease, the researchers didn't think it was significant.

And they thought the benefits of 150 minutes a week were enough no matter how you got them.

We suggest that "as good as" might not be good enough. Rather, we hope you'll opt for daily (or almost daily) physical activity.

A massive 30-year study, also published in Circulation, reveals that "any combination of medium to high levels" of vigorous (75 to 300 minutes per week) and moderate physical activity (150 to 600 minutes per week) "can provide nearly the maximum mortality reduction" of 35% to 42%.

Try to find the time daily — in the morning, during lunch break, or after work — for a brisk 30-minute walk or bike ride. And get in your longer, stronger weekend workouts too.